If you can only carry one tool for personal defense/burglary, make it the Ka-Bar Becker TacTool ($140). The result of a collaboration between John Benner of the Tactical Defense Institute and Ethan Becker of Becker Knife and Tool, the TacTool offers a 7.75-inch blade, and works for prying open doors or windows, cutting, bashing out windows, lifting nails and hinge pins, and more.
No matter what the job, the Leatherman Super Tool 300 ($70) is ready to handle it. This heavy-duty all-purpose tool offers both a clip point and serrated knives, both needlenose and regular pliers, several wire cutters, a wire stripper, a crimper, a host of screwdrivers, a file, a saw, both bottle and can openers, a ruler, and more. With rolled handle edges for a comfy grip and rock solid stainless steel construction, it's ready to help with your handiwork for years to come.
Take a trip back to 1891 with the Victorinox Swiss Army 125th Anniversary Heritage Knife ($495). Limited to just 1884 individually numbered units, the Heritage is a replica of the 1891 "Soldier's Knife" made by Karl Elsener for the Swiss Army. It features a large blade, punch, can opener, screwdriver, ebony hardwood handles, a certificate of authenticity, and will arrive in collectible commemorative packaging.