As an instructor, one question I get a lot is "How often do I need to clean my gun?"
Aside from the fact that I like to clean my guns, my rule of thumb is that if it will be more than a week before I shoot again, I clean them. If I have shoot at least 2 weeks in a row, I clean them. I am a little more particular about my carry gun, but I like to have them all clean.
Malfunctions are scary. They have a way of happening at the worst possible time. Something to consider...
I have never heard of anyone having a malfunction because their gun was too clean!