Almost time to do invoices for the month. As gas prices here are near $2.00 a gallon for regular unleaded I have decided I have to add a surcharge to cover this extra expense. Not only does it cost me more to drive to accounts and to mow them, it cost more at the grocery store and everywhere else. I do not have anything covering a gas upcharge in my contracts. (This will change for next year) Do you think I can still charge an extra amount?? What amount is acceptable? I was thinking 2% on the entire monthly price for my contract accounts. Thanks for your replies.