Not sure how much regular is, but when I filled the bike up today premium was $3.93. Cost almost $15 to fill it up. This same time last year when I bought it I could fill up for $10...its going to suck so bad when it starts costing $20+ to fill a 4 gallon tank :rocket
Regular went up to $3.99 yesterday (mid-Michigan). I only buy premium, so I've been paying over $4 for a while now. Sucks, but there isn't much you can do other than drive less, and I don't think work would appreciate that.