Well, you don't ***have*** to use PayPal. You can specify a check (and that you will wait for the check to clear before mailing). You would post it in the "for sale" area of the QB and specify the amount of postage.
Edit: You would not post your snail mail address in the ad. Instead, you would wait for someone who is interested to PM you that they want the box. It's a good idea to specify that you will wait a certain number of days for the check to arrive (a week is probably good), and then will wait for the check to clear. You then PM that person when their check arrives, again when the package is mailed. If the check doesn't arrive within the specified time, you can re-list the item.
Whether snail mail or PayPal, it's accepted common practice for the seller to wait for the money to arrive before mailing the package.
Last edited by Prism99; 08-11-2012 at 04:32 PM.