If you always carry a pocket knife...especialy a nice expensive Buck...that you might not realize just out of habbit is in your pocket....make sure you take it out and put it in your luggage or take it out to the car BEFORE going through security :-[ Its not a big deal...but you wont be getting it back, even if your friend who isnt flying is standing right there and could take it out for you >:( That was the fastest 100+ bucks ive ever lost >:(

Custom knife

Also...not sure why and dont think it was really legal on their part to take it. But the last time I flew a sheath to one of my fixed blade knives was taken from me

(all leather, fit inside my boot, was still in my boot) There was no knife on me, that was in my checked luggage. Apparently those arnt allowed eather...personaly I felt it was a load of BS and that SOB just wanted it :-/ What harm is a peice of hard leather going to do, leave a welt on some poor sap :-/
But overall security is pretty easy...just leave the obvious in the checked. Also if you have a laptop dont pack it on the bottom of your carry on. Leave it on top since they will take it and run some kind of quick test. If you have a FILM camera pack them in your carry on...theres something about the x-rays on checked luggage that will ruin the film...same with VHS and video camera tapes as well

No aerosol of any kind in your carry on. Also recamend putting any bottles glass and plastic in a ziplock bag. Shampoo is not something fun to find when you unpack. Also any items that cant stand water you will want to put in bags as well...I even pack all cloths in bags. Sometimes your bag might find water on its trip. Wet cloths and whatnot are not that fun to discover eather
I think thats about all I can think of...for now.