We stick this at the bottom of every listing we put in. Covers just about everything and lets everyone know where they stand:
Due to time wasters if payment has not been received for an item within 7 days of the close of auction, and no reasonable explanation has been given, the item will be relisted, negative feedback given, and a non-paying bidder report filed with eBay.
*NEVER ASSUME*
If you have any questions regarding this auction please ask before bidding.
Also in payment instructions:
Overseas bidders must contact me before bidding for a shipping cost. Overseas bidders must pay by Paypal.
It seems to keep most of the nutters away and covers your arse if they don't with regard to non-paying bidder reports and disputes.