You have to hang that wet film somewhere to dry. I got a roll of wire and a bag of wooden clothes pins. I drilled a little hole in the end on one side of the clothes pins and strung the wire through the holes so all the pins are permanently hanging on the wire. Then you just need a box of clips to weight down the bottom as the rolls dry.
You will also want a small light box if you don't already have one. And your own pair of scissors.