So, since it's sometimes tricky to transport DE blades when traveling, I've decided to give my grandpa's Gillette Atra handle a spin. Seeing that one can still purchase cartridges at a typical drugstore, and that other brands make compatible cartridges (personna for sure, and i believe rite-aid, perhaps walgreens too?), and since even the Gillette-branded cartridges cost about HALF of what their Mach 3 ones cost, it seemed logical. Plus, the embossing on the metal handle provides a decent grip and has a little more weight to it than my M3. Has anyone else used a similar setup? I've also seen the Trac-II cartridges, and some of them say they're also compatible with Atra handles. Can anyone confirm this?