I'm in the same boat as you, but I am only able to cut once a week due to my family's schedule. My grass does not seem to mind. Lately, we have been getting a nice amount of summer rainfall at the house too, so it goes with the territory- more rain equals grass growing more. If both of us were not getting the extra rain, we would not be mowing as often. So keep mowing as your schedule will allow.

By the way, I find mowing my lawn therapeutic. My wife calls me a yardaholic.

I'm sure that my wife would too if she knew of such a word!

If your grass is 6 inches tall and you clip off 2 inches, that is 1/3. Is your grass higher than 6 inches in 3 days?

Watching closely it reaches over 6 inches in 4 days. My caveat is that the mower even on it's highest setting is 3.5 maybe 4 inches max. So every 4 days it is!
I do not mow a few areas that do not grow quite as aggressively.