hi lovely ladies! & gents

I've just moved into a lovely little cottage with a nice little garden, and I'm wanting to get a compost bin so I can start growing veg and fruit in the summer..
can I use any old outdoor storage bon/bucket with a lid? or do I have to get a proper compost bin from B&Q?
also.... what sort of things do you put in your compost bin?
(sorry to seem daft, just a newbie to garden-y things as I've never had a garden before)
thanks in advance
