You are permitted to carry liquids and gels in the passenger cabin provided that their containers are 3.4 ounces or smaller. All liquids and gels must be packed in a clear, zip-top plastic bag. Plastic bags must be one quart size or smaller and each passenger is allowed one plastic bag.
Scissors with a blade length of less than 4 inches are allowed in carry-on bags for air travel. Tools such as screwdrivers, wrenches and pliers with a length of less than 7 inches are permitted.
Firearms and weapons may be checked for air travel as long as you have a permit. In the case of packing a firearm, it cannot be loaded and must be stored in a lock-box.