Cheap b@$+ard tipping pro-tip:

I go to my bank and get a couple hundred dollars worth of $2 bills. They’re easier to carry, and I kid you not, 50% of valets, van drivers, bell boys, etc. proceed to tell me how thankful they are and that they’re going to give it to their kid, or add it to their “collection” or whatever.

I find that they are more appreciative than when I only have a $5 or especially the uncomfortable moments when I ask to break a $20.