I already do all of the stuff on this list, but not sure about the tipping as a regular matter. It seems like more and more businesses/employees in the USA are expecting tips for services that used to be considered the just the job. I understand paying tips for a waitress, but now you see tip jars are restaurants that don't even use servers. You pay at the counter, carry your food to the table, and clear the table when your done eating -- so why are they asking for a tip?
Bike shops are another matter. I may be wrong, but it seems that they are charging prices adequate to compensate them for the services they provide. I don't get tips at my job and could probably be fired for accepting them. However, I have on occasion "tipped" my mechanic with a 6-pack or beer after a bike build or other involved services.