I shave every day I have to work, 99% of the time that's Monday through Friday. I'll shave on the weekends if I'm doing something requiring me to be dressed up nicely (e.g., party, taking the wife out, etc.). I like having the two days off as it gives my face a couple of days to regroup and then I get that nice Monday morning shave. While DE shaving has reduced irritation INCREDIBLY, going 12 days or longer in a row starts to leave my face feeling a bit sore. YMMV as always...