We hadn't flown in a few years and forgot some things. My wife carried a tiny multifunction knife in her purse. It had a 1" blade. TSA took it. In my shaving kit I had a pair of scissors. They measured and said "Ok the blades are not over 4" These were both in carry on baggage. In checked luggage the rules are much different. Camping gear (tent stakes, cookware, stoves without fuel) all ok, as are golf clubs and fishing gear. Most kinds of electronics are fine in the cabin and in the hold. I feel much safer with odd rules in place.