If you live in the U.S. and travel using only carry-on luggage, I would caution you that the TSA has full authority to, and often does, confiscate non-cartridge razors, even without blades. (And I definitely don't recommend trying to explain to a TSA agent that a razor without blades can't cut anything.)switched over to DE once the last of my carts were gone and the price for 12 carts was enough to just get into the hobby. Get better, more satisfying shaves with DE and it has become my preference. For travel I just bring the razor and find blades at some local drug store. hasn't been too much of a hassle.