How often do you change blades?

[SlyCatCrossing]

I run atx + dorco pace 4 carts.  My hair is full, thick, and very tough... I can grow an Afro that puts quest love to shame. Needless to say I am bald by choice.  I shave usually everyday, occasionally skip a day if I'm lazy, I get typically 2 great shaves and 1 ok shave.  I can squeeze a 4th shave out if I use oil or something but between the poor shave, my skin reaction to oils, and how cheap I get the dorco carts I dont even bother with trying a 4th most of the time.  It is nice to know that I can if needed say during light travel for example. 

I used to use a remington rotary face shaver on my head.  I got it for around $30 back in like 2005-6, never changed the blade, and it still runs just as good. It's not as close as a blade but 0 irritation ever, much quicker, less water waste, and no money spent on cartridges and creams.  I just prefer chasing that smooth dome dragon so much that I'm willing to forgo all the positives of electric for that shiny, slick skull

[rabidus]

I use a double edge razor. The blade I'm using now, Gillette Silver Blue, is only good for about 12 two pass shaves, WTG/ATG. It cost about $.18 cents a blade.

I got 18 two pass shaves from an Astra SP blade, which cost $.09 cents a blade.

[4fit]

 Gillette Fusion Pro Glide usually gives me about 10 shaves. I virtually nothing on top to shave and deep horseshoe in rear.

[Calvo1029]

I use the headblade razors, I usually aim for lucky 7 shaves.