So after a couple hundred hours of new Vegas, I bought fallout 3 and I don't know what I'm doing. I've had 3 for about 6 months but I haven't played it much (I've finished it on a somewhat rushed campaign) so what advice can you guys give me when I start playing it again? Weapons, perks, locations, ammos' etc (yes ammos')

explore, its the best aspect of the game, do side quests, try and get every bobble head, always search every location you find, try and play as a different karma rating, ect.