We liked Starbucks stuff, but it is too expensive to drink exclusively.

If you really want to mix it up, get some black tea bags at least once. Black tea with coffee creamer is a great substitute if you're looking for a change. Also, during holiday season I like to sprinkle some cayenne pepper on the fresh grounds before brewing. Use just enough so you can see it; I'm talking literally a single finger tap. This gives the coffee a nice bite, but after a week of doing so you'll be ready for a change.