What is "checkout"?

[nightowl]

I sold an item last Saturday and received no kind of payment or message so i sent buyer an invoice as a polite nudge.

They have completed checkout (the trolley sign lit up) but no paypal payment. Does this mean they will be sending a cheque or postal order (i didn't think they could get my address off ebay?), or do i still need to chase them up?

Your address will have been on the invoice.

Click on the item description and see what it says at the top about how the buyer paid

oh, and it's best to send an invoice once the auction has ended, so that the buyer can pay. You can use a payment reminder later if you need to remind them.