This question rustled some jimmies! Now that we have more information I'm rephrasing it to fit in better with the overall picture, which is shaving options for travelers without checked luggage.
When traveling with carry-on luggage only, it's not always obvious what shaving equipment we can bring on a plane. For those of us that shave with open-ended blades such as double-edged safety razors or straight razors, as opposed to disposable and cartridge razors, the problem is exacerbated by trips with multiple stops where we have to tediously acquire blades at every destination.
Naturally, the most flagrant razor blades are not permitted on a plane, but some shaving equipment is. As a not-too-frequent traveler myself I've never quite really gotten a hang on this, and I end up chasing down razor blades at a kiosk in some far away place at 2AM.
There must be a better way! I figure frequent/business travelers must have developed several best practices of dealing with shaving by now.
From the perspective of someone who most certainly cannot bring their regular razor onto the plane, what options are there for a traveler limited to carry-on luggage only?