This topic interests me as well. I can even drink free coffee if I wait until I get to work, but I love my morning coffee too much. Also love natural sugar versus refined white. Almost found myself pocketing a few extra at the Starbucks the other day, but I gotta sleep at night.
Right now, I've tried at least 5 different blends (Costco included - which I thought stunk), but I'm stuck on Starbucks French Roast or other dark varieties. May have to look into roasting.