I just pick up my PHB if in doubt.
Quite honestly ...
The closer we get to release, the more im learing about the game, the more i cant shake the feeling that this isnt good advice at all. :-/
I made it as a joke mate

. Though I do literally have half my d&D 5E books by my bedside, so its a viable option. Though as KLSLS said, its not necessarily a valid strategy down the line, if they change things around at higher lvls.