I'm constantly trying to get little exercises in throughout the day when I can. For instance, I often do a stair workout at work, climbing the steps and at certain floors I'll stop and do pushups or situps or whatever.
This afternoon on my way back from lunch I had to take an escalator so putting my hands on each side of me I held myself up all the way down.

What sorts of things are you guys and girls doing to get in a little exercise from time to time?