Building a work routine

I am starting a little routine to do while I am at work- spaced out throughout the day.
 So far it is just: basic squats*   10 reps (clicky knees ugh) x2
                        counter push ups   (20 reps) x2

I want to include a few more things in there as time moves on and more reps as I get stronger. No, it isn't a balls to the wall aerobic workout. It is however completely do-able FOR ME.  I tested it out today along with a bit more purposeful movement at work and I was really happy with my burn numbers.  Of course I realize this stuff isn't exact, but it is a nice guideline.   You can see all the various spikes of movement throughout my day. That is very uncommon for me on a work day. What cracks me up is the two spots it dips the lowest are the times I was driving to and from work. (At about 9 am and 7 pm)

*squats are so foreign to my body that I do them in front of a chair for security.  LOL