Ha! I was just at Bass Pro today! And furthermore it was partially cause of you Jax! ;).  

The #1 rule is figure out how much you can afford before you go in. I never do that and over spend every time. As a consequence I have literal piles of lures and tackle boxes that I probably couldn't use in 2 lifetimes. I used to fish a lot but now all I do is work. :P

#2 is give yourself plenty of time. I like at least a few hours. I go row by row, item by item. Handle the rods.......look at the reels. Check out the camping and clothing (although I seldom buy their camping or clothing).

#3 is don't go with your spouse or significant other unless they have their own credit card. During that couple of hours your walking around guess what? They are doing their own shopping! Waaaaaaa :'(.

#4 my only knock with Bass Pro is that the lighting could be better. I like to go during the day for that reason. The lighting at the Cabelas stores are much better.