For the past few years I've been adding transportation charges for jobs farther than 50 miles from where I live. I add $1 a mile for each additional mile. No one has ever griped about this, and it's specified in the contract.

Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)