I've used a coffee subscription service in the past and have generally been pretty satisfied with it. For a big coffee drinker like me, subscription services offer not only a cheaper alternative to in-store purchases but also usually allows for a greater variety in coffee bean offerings.
I stopped my subscription a while ago due to other reasons but have always thought about starting one up again every time I buy a new bag of beans. Today, I came across this fantastic Coffee Subscription Service Guide on reddit that not only lists a bunch of coffee subscription services, but also shows you the price per ounce in coffee that each offers in savings over store-bought bags. Tons of coffee here to choose from and most of them with free shipping included in the price.