Hmmm retro-grouches of the world unite!
Shaving...I use a
Rolls Razor that belonged to my GRANDFATHER! Still works great, also use soap, brush and mug. Bicycles have been around for quite a while, my favorites are the ones with the 3 speed hubs, been around since 1902 with a few improvements.
Many years ago I took wood working courses, we had to learn to do things the old fashioned way with hand tools before we were allowed to use the more modern power tools. It teaches you not to waste motion, or materials and allows you a chance to fine tune and plan things. Take a power saw and make a few cuts, waste some lumber...you won't want to that with a hand saw, too much lost time and expended effort.
I honestly think that we need to keep in touch with some older forms of technology, they may come in handy in the future. One that comes to mind at the moment it touch typing, they no longer teach that in schools, now it is called keyboarding.

I can still type over 70wpm on a regular typewriter, spell check and word processing can speed that up even more.
All new technology isn't necessarily a good thing. Someone mentioned solar hot water heating...I live in a house along the Gulf Coast in Florida that was built in the 1920's that had solar heated hot water. Big cypress tank painted black in the attic with glass panels in the roof to allow the sun to heat the water...modern technology my foot.
Aaron