As I've mentioned many times, exercising and being (sort of) fit is important to me. Sometimes, though, I know it can be hard to incorporate enough movement into your day... so here's how I do it!
In the morning...
-Toss and turn. All that wiggling has got to burn some calories! (Also, wear extremely thick flannel pjs, preferably ones with floral patterns from the 60s... and wrap yourself in quilts... it's like your own personal sauna!)
-Put on knee socks. First step: turn them right side out, because they will inevitably be rolled in a ball. (Actually, that's the third step. First step is putting them on and realising that you have to take them off. Second step is falling off your bed while trying to take them off because they're so tight that yanking them off is a full-body exercise.)
-Alternatively, wear tights. They will be so itchy and irritating that you'll dance all day long! (Or eventually become so frustrated that you are willing to peel them off in front of all your fellow coworkers/students... of course I'd never do that -shifty eyes-)
During the day...
-Perform advanced fidgeting. Tap your feet. Or your fingers. Or bob your head from side to side. You may look like a deranged bobcat, but at least you're staying fit! (Another advantage: no one will want to sit beside you, so you'll have more room to spread out!)
-Drink lots of tea or coffee. What does this have to do with working out, you ask? Well, you'll have to a) stand up to prepare it and b) get up about 50 times during the day to go pee. (Plus, green tea and coffee both boost your metabolism... although I doubt a sugary macchiato really helps in that respect.)
-Play with your hair. Put it in a ponytail. Then decide that you don't like how it looks and put it into a messy bun. When the messy bun falls out, brush it with your fingers. With all this up and down, your shoulders will be toned in no time!)
...Or you could just go to the gym. That works too.