Second @WhatEvil‘s standing calf raise. You can do this with or without weights, by standing with roughly half your foot (experiment to find your balance) hanging over the edge of a sidewalk.
Also, run stairs or do hikes with large elevation gains. This will tone all your leg muscles.
I second @WhatEvil‘s recommendations for wrist curls.
@WhatEvil – that’s a great site, thanks for posting the link!