Started out shaving with the old double edge. It really was all there was at the time. I used to regularly cut the hell out of myself with the darn thing. I later switched to the sensor razor and used that for many years. Now blades for that are very scarce. It really surprises me that blades for the double edge are still made.
I second the shaving soap and mug. Far FAR better shave with that than the canned stuff. I tried just about everything form foam to jell and in between. I got closer more comfortable shaves with the brush. Take it for what it's worth, my experience goes back to the mid to late 60's. The brush and mug are a GOOD thing to have.
Heck I even remember the canned shaving jell that foamed up and got hot while on your face. It kind of worries me what the heck kind of chemicals they put in that stuff and I had it on my face and around mouth / nose too.