I've never sold anything through eBay, but I have bought things and then paid cash when I collected. Don't know whather this saved the seller anything, but it saved me postage and meant I could collect rather than wait in for a postman.
As long as the item is described, I don't think there will be a problem. If you've described it generously, i'd expect a lower offer once they see it .....
when i have had people collect items i have made them a receipt in a duplicate book and we both sign it, and it shows the date and place of collection, item collected and ebay ref.no and both sellers and buyers name and address - a bit pedantic but have had no problems
yes but Molly them signing a piece of paper to say they received an item means nothing if that buyer goes to paypal they can claim all their money back and you as a seller are powerless and can do nothing.