I've been shaving with a Mach 3 for awhile now, but haven't switched the blades yet. I have 3 blades, and have rotated constantly with them. I've recently developed a pretty annoying case of "shaving burns" i guess it's called, I just prefer to think of it as shaving acne or something like that. How often do you change your blade, buy a new set of blades, and do you shave with cold or hot water? Lastly, what kind of shaving gel do u use and how much of it. No one ever taught me to shave, I just kinda went out, bought a Mach 3 and some gilette shaving gel, and experimented. Thanks for helping out a young-in
