I have the 4 blade disposable head razors. But shave every day at work and almost every day at home except during vacation or hunting season. I shave in the shower. No shaving cream needed. have done this for probably 6-7 years now and it works perfect . No mirror needed either.
Razors last 10 times longer since they are constantly being cleaned with the running water. One head will lastme easily 3 months, up to 6 months