How many still remember when gas station attendants would routinely wash your windshield and offer to air up your tires? Fortunately, tires nowadays are much better than in the 50's and 60's, and don't need to be aired up every week or two.

Free air is something I don't see at stations around here but Ill have to check out the local Lowes. If needed, I usually stop at Discount Tire where they do it quickly, and free.