Ahh. Well we have the crates in the spare room, so I kick them out onto the landing while I'm doing my thing
As I said, I personally think crates with a pen attached is the way to go
For bedding I use fleece, rather than loose bedding, as it's cheaper and makes it easier to clean them out. I flick the fleece out every night, hoover up stray poo, then change the fleece once a week. Neutered/spayed rabbits are great at using litter boxes, so it doesn't get wet very often at all. If you're getting intact bunnies, I'd go with an absorbent bedding. I couldn't recommend one though as I don't use any. For litter trays most of us use those big underbed storage boxes - they like to be able to chill out in there, and they like to eat where they poo, so put their food and water close by/in it. Again, litter is down to personal preference. I use short cut straw, others use newspaper or dust-extracted wood shavings to name a couple. For cleaning supplies I use a pet safe disinfectant spray, which I use on the trays when I clean them out every second day. They will inevitably poo everywhere, though, so a hoover is a must for me. Failing that, a dustpan and brush.
As for food, a high-fibre pellet is best, you can check the content of most brands online. That should be 10% of the diet, if that. I have three big bunnies, so I give a couple of handfuls each morning. The bulk of their food should be hay. You can get loads of different types, it's up to you. They should never be without hay and should/will eat a bunch as big as themselves a day. Fresh vegetables should be leafy greens or herbs - kale, spring greens, parsley etc - with the occasional bit of carrot/pepper/spinach every once in a while, as they're high in sugar so should be given sparingly. All of this should be introduced slowly. Keep the same brand of pellets they have been eating and slowly switch them over by mixing them together and gradually phasing the old pellets out. Vegetables should be introduced in small amounts so as not to upset tummies. They will, however, ALWAYS act like you're starving them :roll: As long as they have hay there, don't worry, they're just greedy!
Toys - toilet roll tubes (you can also stuff hay in them), cardboard boxes, tunnels (you can make these out of some cardboard boxes lined up, or buy them online), hard plastic balls they can roll around (you can get a pack of five with holes in them from Poundland, which you can shove bits of food into), phone books, mine like
these ... that's all I can think of right now. Wilkos has a brilliant little selection, as does P@H, but they're way more expensive. Of course the best toy is a friend that they can talk to when you're not around.