(On Wheezy) I've been trying to add myself to the sudo group with the usermod command.
As root, I've tried most of the permutations of this: usermod -a -G sudo <username> None of them have worked -- any suggestions? (I have checked using groups (as username), and even have opened fresh terminals. Hmm, maybe I have to reboot? I hope not, I don't want to do that in the near future.)