Then a Russian woman brought up a Coach purse, which she changed the $10 tag to $3, handed me $1 and said "Take this." I said no, opened the purse and there were two other purses stuffed inside and a scarf.
That really takes the cake.
Have you thought about selling stuff on craigslist? At least that way you communicate via email and/or a phone call and they just come by and pick up the stuff and give you the money.
Speaking of handbags....
One time I was talking to shewolf, and said "wow, that's an amazing laptop bag" You could tell it was a designer bag. She said she bought it at Goodwill for a few bucks, and that brand retails for like hundreds of dollars.
I've gone by the Goodwill in this wealthy neighborhood a few times, and bought Cole Hahn, Kate Spade, etc bags for like $5-$10 and turned around and sold them on ebay for $20-$30 plus.