My tip is stop wearing that "lucky" hat that you've had for 10 years. I see guys all the time that put on the same ol' stinky sweat filled hat when they hunt. Even if you put a squirt or two of scent killer spray you will not kill the stink. I don't wear a hat at all unless I have to. If I know I will be looking into the setting or rising sun I may wear one other wise leave it at home. If you want to wear one for warmth then do like Chuck Adams and wear a sock cap that can be washed in the washer. I even have a few sock caps with a small bill on them. I think many feel they have to have a cap on to hunt.