I can't believe that anyone thinks that it is a good idea to reconfigure the bleeds by memory after a bleeds off departure..
Depends!
On the 737-200 and early 737-300 charter operation almost
every take off was bleeds off so we knew the procedure so well we could do it in our sleep (we often did!). Can't ever recall one occasion where anybody got it wrong - we were
very aware of what we were doing and when to do it.
With the better performance of modern a/c it's more of a rarity so you might feel better being propped up by a checklist if you feel it's a big deal.
And then there is the question of R/T - I cringe when I hear "Standing by for Descent" instead of "Request descent" or "Bloggsville Leary XXX Request" ..."Leary XXX Pass your message"....."Leary XXX we were just wondering if FL 380 was available" - why not just say "Bloggsville Leary XXX Request FL380" ?