S.B.
I know this won't sound personal, but I LOVE when students get me gift certificates--Starbucks or Barnes & Noble. I'm a professor, but I think everyone in education is underpaid, so gift certificates are a treat. I don't have to ask myself if I can afford that latte on the way to campus. Or I can get that book I'd always been tempted to get but haven't yet.
Just an idea :-)
S