extra workout for improved footwork and agility

I am currently in a strength phase of my workout plan, it will last for 6 weeks, then I will move on to more of a power phase with more position specific work involved. But I was wondering what kind of light agility/footwork drills can i do to improve my footwork and decelleration and re-acceleration in and out of routes. I am working out in a room that they use for aerobics classes. So I don’t have a large space to work with. Any advice or help would be much appreciated.