Thinking about trying it again over the winter - too much stuff going on now... And Michael is right, you don't need a darkroom unless you want to make traditional "wet" prints. I've never done that and got my film ready to go in a changing bag. Mine was about 30" square, had two sleeves you put your arm into and double zippers to make sure it was light tight. Put all the stuff you need in there (the film, reel, developing canister, tool for getting the film out of the canister and scissors for trimming the ends of the film. Of course, if you forget the scissors, just put the film into the canister and seal it so you can take your arms out of the bag without ruining it (done that a couple of times).

Once the film is inside the light tight developing canister, you can work with it in the light. I actually did all of this stuff in my kitchen but was careful to scrub everything down after working with all of those chemicals. I hung my strips of film to dry in the shower and they were dry by the time I got up in the morning.

Oh, and another tip - use distilled water. I live in an old house and even though we have a water softener, it's not good enough for developing. Distilled water is inexpensive and will keep you from getting water spots on your film as you rinse it (and doesn't hurt with the developer, stop and fixer).