calculating exercise

I usually count the calories that I burn when I do my workouts (gazelle, bike, etc), but I was wondering if people also count their exercise calories when doing things like deep-cleaning, etc.

For example, I am the manager of a church campground that has large groups of people come in and do a retreat, youth camp, etc. When I am getting ready for a group to come in, I usually spend 4 - 5 hours cleaning all the buildings, cabins, etc. before people come in. This is over and above my normal routine. So, should I count those calories spent as "exercise"? Or only count my workouts?

Just wondering how others calculate their exercise. Thanks!