Interesting responses.
As DM, I expect the Players to keep up with their own character sheets. If someone is so irresponsible that they can’t keep up with one sheet of paper, and have it each game session, I don’t think I’d want to game with them.
This doesn’t mean that I’m a hardass over simple mistakes – I have had a bad day and forgotten stuff, too. But on a general/regular basis, if you can’t keep up with your character sheet, you probably shouldn’t be playing such a complicated game.
As a Player, if the DM asked for my character sheet, I’d give him a copy (electronic or paper). My character sheet is my property and my responsibility, no less than my dice and my PHB.
Quasqueton