Every day. I can't possibly hope to get through my soap if I don't. I'm going to commission Simpsons to make me a 45x90 Chubby 10 to help me get through the soap a bit faster.
Being an SR shaver, very day. I'd shave twice a day if my fresh goat manure with seawater beard growth enhancer worked better. The only day I miss a shave is when I plan on getting a USD 1.20 full-service barber SR shave the next day. I want to get my money's worth.
When I used cartridge/disposable stuff I only used to bother a couple of times a week. When I went back to DE ("back" because I'd had a cheap Wilkinson when I was a student) I found I was looking forward to it. Since I got into straight razors I find myself rubbing my face in the evening and thinking "wonder if I could do another before I go to bed".
I would like to shave every day but then I have an irritated neck, so I have to shave every other day. Now I'm wondering if I should try the Philips electric shaver, but I'm not sure if it will be better.
Everyday. Unless work has been hectic and I have an off day with my wife I'll skip a day since she likes the stubble. So about 6.5 days a week if you look at it that way.