Tricks of the Trade

I have been reading this website Tricks of the Trade a lot recently. The premise is that people send in secrets of their job, little tips that you can gain only through experience. A lot of the tips are questionable, a few have even featured some pretty bad physics, but I find a lot of them plausible, even insightful. Take this trick for example:

"Wear a kilt when playing bagpipes on the street. You will make twice as much money than if you wear regular clothes."

There is no way I am giving any change to a plain clothes bagpipe player. I am paying for the whole Scottish experience damn it, and that is what I expect.