A common expression I hear and use is "If you ever need any help with anything, please let me know!"
Well. The stuff I need help with is a little difficult when it comes to asking. I mean, who is going to drop what they're doing and help me clean my bedroom? Not because it's a huge job (*cough*) or because I can't do it by myself -- I don't really need someone to help me clean. It's more like I don't want to be by myself.
Same with homework. Nobody has time to come do homework with me. Besides, that's boring for the other person!
Late night phone calls, too. Or just phone calls in general...or face to face conversations. Either I'm too busy or too afraid to talk, or the other person is busy and I'll bother her/him. And so I don't call anybody. Besides...there isn't much to say.
Two weeks and one day until my semester and finals are over. Then off to St. George for a couple of days. Can. Not. Wait.