I did this back in 2010 when I first made my goals to be healthier and lose some weight.
It worked like a charm for me.
I Googled "zig zag calories" and a site popped up that had a calculator into which I typed my variables and it came up with a weekly plan for daily calories. Mine ranged from 900 to 1700 (I'm fairly short and middle-aged, thus the lower numbers). I planned my most vigorous workouts on the higher days and some enjoyable, time-consuming things on the lower ones.
"If you drop an egg, you don't say, 'Oh, shoot' and drop the other 11, do you?"
-Source unknown, but obviously brilliant
Reached goal 4/16/2010...but kind of afraid to look these days