Let me start:
Carts myth:
It takes a lot less time to shave. - In my case, only five minutes difference between DE and carts, as it takes time to spread the canned goo all over the face and takes a lot more rinsing.
I have shaved with both DE and carts since the mid 90’s. Never once with ‘canned goo.’ A Gillette ProGlide combined with a great badger or synth and a GroomingDept, Eufros or Mystic equals any DE for me.