It’s quite popular for camgirls – or other sex workers or even “vanilla” girls – to sell worn panties.  I have an entire page on my site dedicated to selling my panties.  While it may seem a bit intimidating at first, I promise it’s really easy.  As always, this article is based on my experience; if you (ladies OR gents) have additional advice, please share it in the Comments section!

How To Sell Worn Panties

Type Of Panties

You’re probably going to want a good selection of fabrics – cotton, silk, satin – as well as styles – thongs, full-back panties, boyshorts – to start out.  Once you get a feel for what your regular panty purchasers are interested in, you can narrow down your focus.  (Or not.  I have about 150 pairs in my drawer, at last count.)
Some of my guys like to wear my panties; I fully encourage this, because yum, something about seeing a dude get hard in my panties is just hot.  Oops, off topic!  Okay.  So, since these guys like wearing them, they aren’t usually going for my itsy bitsy thongs; they prefer my stretchy spandex boyshorts usually, or maybe a pair of cotton full-back panties.  I try to keep a few of these available for these guys.
That being said, I also have guys who want to jerk off with my panties; satin and silk is best for this, and I’ve been told it retains your “scent” well.
Cotton full-back panties are by far the most popular.  I’m guessing this is due to their versatility?  They’re a bit stretchy if the guy wants to wear them, they’re soft enough to jerk off with, and they have enough fabric (as opposed to say a thong) to get your scent all over them.
Thongs are also popular for the guys who like to smell you, because let’s face it, thongs are pretty up close and personal with all of your lady bits.
Obviously don’t offer types of panties you aren’t comfortable wearing; some girls don’t like thongs, some don’t like satin, etc.  You will need to wear these before you mail them (almost always, anyway – some guys do like them clean or perfumed).

Pricing

Of course how you price your items is up to you.  Please take shipping fees into account first, though.  $40 or $50 is fairly average, from what I’ve seen, and it at least covers most shipping.  Once you get a feel for where your regulars come from, you can alter your price.  Most of my regular guys are in the US and UK, and shipping a panties package to them costs me about $25 and $45 respectively.

How Worn Should They Be

For this, you’re going to need to make sure the buyer is very clear about what he’s after.
Some guys just want a clean or perfumed pair of your panties.  These are easy – wrap them up and mail them out.
Others want to be able to get a general sense of how your worn panties smell.  I believe a full day is a good length of time to accomplish this.  Go about your day as usual, and sleep in the panties at night.  Usually this involves masturbating in them as well.
There are other guys who really really want to be able to smell you.  REALLY.  Maybe even taste you.  Get ready to wear these panties for about three full days.  Sleep in them, work out in them, and masturbate in them.  They’re likely going to get to the point where you’re looking at them going “ew, no way, I can’t send these out, they’re so dirty” – that’s PERFECT.  If you’d be embarrassed if anyone saw these lying on your bedroom floor, that means they’re ready to go.

Packaging

This part is extremely important, as you want them to be as well-preserved as possible.  As soon as you take the panties off, wrap them in plastic wrap (like the cling wrap kind).  Then, put them inside a ziplock bag.  

DO NOT skip the cling wrap step and put your panties directly into a ziplock bag – they will come out smelling like your crotch and plastic.  Gross. Wrap panties first in cling wrap, then into a ziplock bag.

Cling wrap keeps your scent in and the smell of the ziplock bag out.  The ziplock bag is an added layer of protection for your panties.  Always double wrap like this.
Now that you’ve got your panties wrapped up, put them in the freezer.  It sounds weird; just do it.  Freezing them like this keeps them “fresh” until you’re able to mail them.  Obviously don’t leave them sitting around for days and days, but maybe the guy who ordered them also wants a second pair from you – you’re definitely not going to mail two packages, so let one sit in the freezer while you work on the second pair.
Jolie and I actually have a little shelf in our freezer that is the designated panty shelf, since both of us have sold quite a few pairs.  Obviously don’t be putting panties in the freezer if you have “vanilla” people living with you.  It’ll freak them out.

Mailing

I use a bubble envelope to mail my packages.  They’re a bit harder to destroy, so there is less chance of it ripping open and surprising an unsuspecting mailman.  They’re also relatively cheap to mail, generally.  You can even buy a package of them at the dollar store, or Walmart, or wherever else you can shop for cheap stationery. I managed to find packages of them on sale at Staples for $1 a while back.
Write out (or print a label, for extra discretion) the address of the person to whom you’re mailing panties.  You may or may not need to write a return address; sometimes the post office asks me to, and other times they don’t.  I always use my PO box address.  I’ve had some girls mention they create a fake address.  I’m not sure I’d recommend that, but definitely do not ever write your home address OBVIOUSLY.
Sometimes you might need to fill out customs forms as well.  I list the package contents as “clothing” and contents price as “$5”.  Again, please please do not write your real name on these forms.  I sign these using my business name and list my PO box (business address).  It’s up to you how you do these, but always keep your own safety in mind.
A little “learn from my experience” advice – get a tracking number.  Sure it’s an extra however-many-dollars, but it’s important.  

Some guys will say they never got the panties, and then what?  Do you send them another pair and take their word for it?  Do you say too bad buddy that’s not my fault?  NO!  You say “oh, okay, let me check the tracking number and find out where it is!”  

I do this with every pair now, because I have had a couple guys who had never received theirs (one was a long-time regular buyer so I highly doubt he had made that up).  Some guys get a bit ridiculous if they don’t receive a pair they’ve paid for, and take it out quite violently on the girl.  You do not want to have to deal with this.  Just get a tracking number and save yourself the hassle.

Where To Sell Worn Panties

There are a few sites that allow you to list panties for sale – ExtraLunchMoney (list panties as a Job, not a Product), GlamWorship, and AdultWork all have the ability to list panties for sale.  Cam sites like MyFreeCams allow you to offer your panties (or anything, really) in exchange for site tokens.  Streamate does NOT allow you to sell panties, nor does MyGirlFund, and I believe both sites will ban you if you get caught doing so.  You’ll want to check a site’s TOS or ask an admin before offering panties, if you are unsure.
You can always do the independent thing that I do as well; simply list your available pairs on your site (or blog, or Twitter, or anywhere) and have payment methods available for the buyer.  (See this post on independent content sales if you aren’t sure of possible payment methods).

Well, that’s about it!  That’s all of my advice on how to sell worn panties.  Hopefully it’s helped you out and answered your questions!  If you have anything to add, comment below!