Pocketful of Dough - Tips on Tipping: 2000s Archive : gourmet.com
In regards to greasing palms in order to bypass wait and get into "exclusive" restaurants.
Pretty much works in any other aspect of lines/events in which there are waits or hard to get into areas.
My buddy Hector and I have done this for many events/concerts/dinners especially when we have a group and we have our mind set on going somewhere.