I think the average is $100 per trip. Needless to say the trips are not very often. I pay cash so I will go a long time between trips.
Now, my ebay- about $50 a week. Sometimes more, sometimes less. But, I think I've finally built enough stash of fat quarters to make some of the really scrappy quilts I want to make. I do so love the boxes of fabric- I could just play in them. But, I can stop, I just did last week. I go a couple of months and then look again to see if I can get some bargains.
Today I'm buying a bolt of batting. Never thought I'd get to this, but once I calculated the per yard vs. the lqs, I'm saving close to $2.00 per yard. And I don't have to carry it home, the UPS guy will put it on the porch.