Just wanted to throw this out as a suggestion for folks, but I recently did a sale with a guy who requested an invoice be sent to him for the guitar via Paypal. I didn't even realize you could do this or how EASY it was to do! When he got the invoice from me which detailed what I was selling him and the terms, he paid, and I shipped the guitar. I know the mods can't make it a requirement for transactions in the classifieds, but any future deal I do (buy or sell) I'm requesting (or providing) an invoice via Paypal. Just an extra layer of comfort for both parties in my opinion!