ok, so full story is...
housemate (who didn't grow up in UK) found a wallet on the street a few months ago.
found the owner on facebook (name, pic and location on some ID confirmed it was correct person) and sent them a message straight away. no response.
housemate is a bit of a scatterbrain and the whole thing got forgotten pretty quickly it seems.
i only found out about him finding the wallet a month or so later (so couldn't offer any particularly relevant advice).
housemate is now leaving the country, and has given me the wallet to sort out...
what should i do?
it's been 'missing' for months now, so i guess it's fair to assume the contents (bank cards, ID etc) have been replaced. I presume the sensible thing to do is to destroy them and then chuck it all?
The person aparently had a reasonably active facebook profile (their 'wall' was public), so given that the assumption is that the person saw the message, it seems they're not that bothered?!
oh, and the £25 cash - feels a bit rude to pocket it!