Sometimes if im going out just to smoke doobs, i'll pre-grind and put it in a pill bottle w/ moisture puck, stick a few papers in there
its faster, easier, and you dont have to lug your grinder around
would not recommend for anything you will not be smoking in the next few days.
besides, nugs are nice to have.. i like looking at trich coverage, bag appeal, the explosion of smell when you bust one open. its all part of the smoking experience