Once a day in the morning. Not only does that keep me informed of why the days earnings are low, high or average (my memory fails to go back reliably further than 24 hours) but it is the easiest method for me to ensure my site is still online.
As often as my blood pressure meds will allow. Micro shocks to the system are bad healthwise. Meaning, I used to micromanage until the last hair was pulled from my balding pate. I then realized watched pots EVENTUALLY boil whether I watch or not.
Once a week to see if anything needs to be addressed,