MortalPlague
Adventurer
One of my favorite things about 5th Edition (so far) is the complete lack of a 'five-foot step' as we know it. I've never seen my players take so many opportunity attacks (or get so many from mobile monsters). And combats have much more movement in them.Unfortunately, I don't see any good way to actually fix the problem, other than just saying "don't!". There are genuine cases where a five-foot step is indeed required, and nothing else will really do the job (although 4e's approach of making a Shift a Move action goes a long way towards fixing the abuses). But it's never really been a clean bit of the rules.
Granted, 'shift' is a feat now. But it's nowhere near as easy to abuse as the good ol' five foot step.