Feel free to PM me with any questions as I have helped out quite a few guys on here. Many people cannot find these answers in any book.
Here is one thing that I do that pays big:
In one tournament series I fish, one of the series main sponsors is a very large Cooler company, another is a planer board company. In the morning, when I launch (5am), I bring coffee and donuts. I put my sponsors stickers on the boxes (Engel Coolers, and Off Shore Tackle.... PLUS Crappie Dot COM!!!) I do it on their behalf, not mine.
When these people go to the store and purchase their own products, they do not remember that (big name company) sponsors the series.... they remember that Engel coolers, Crappie Dot Com, and Off Shore Tackle provided coffee and donuts at 5am on a windy 35 degree Saturday morning when they volunteered their time! In the end, who gets the sale?
I have OCD "Obsessive Crappie Disorder"