Some of the advice on here - $400 to $500 a month on stuff in college when you've got a full meal plan?
I can understand that if you live on campus you're not really buying a lot.
Maybe try to make one purchase on one card each month and then rotate between them. You mentioned that you're already using the Chase and Discover one quarter out of the year, so they're probably fine - there have gotta be other people who do that. I would mainly just worry about the Barclay one since waiting until you go abroad to ever use it is a really long gap.
BofA Cash Rewards 25,000 (2009) | Citi Double Cash 25,000 (2011) | Cap1 Quicksilver 10,000 (2013) | Discover It 31,000 (2014) | Chase Freedom 9000 (2014) | Barclaycard Rewards 25,000 (2014)
FICO: 840 Discover/Barclays/BofA TU, 869 Citi Equifax
