You might wanna get some info of others but one thing that helped me out with foot work was using a speed rope,
WHEN i finaly begane to skip welll(it took alot of time for me to figure it out) i become alot quicker and lighter on my feet....definatly worth the time and effort to learn 2 skip.
i think there are several post on how to skip you might wanna check them out!

o and if this looks wrong to any one more experianced please say some thing