A few years ago I came across a real novelty: single blade disposable razors. I was surprised when I tried them, and they worked better than the 3-4-5-6-7 blade models.
I have sensitive skin and a tough beard, so shaving usually means cuts, zits and ingrown beard hair. I've owned a dozen electric razors. Each basic kind has advantages and problems. The most expensive ones do a pretty good job, but still require a touch-up here and there with a razor. They're Yet Another Bulky Electrical Thing that I hate to have to remember to pack when I travel. When I lost the proprietary cord for my last $100+ electric razor, and couldn't get a replacement, I never got another. Maybe I'll get another when they make them so I can recharge them with a standard USB port...
Somewhere along the line I got a Gillette Mach 3 Turbo, which is a handle that you have to figure out what cartridges it takes when you run out of cartridges. It does a pretty good job, especially since I don't shave every day...or every week sometimes.