You can't take normal razors in your carry-on bag, but you can take disposable razors. Most disposable razors barely get the job done, so we hunted around for the best, most highly acclaimed variety. It's also well-priced: You can get these razors and a tube of carry-on-sized  shave cream for under $10.  

Schick Xtreme 3 Hawaiian Disposable Razors, Walgreens.com, $8

Gillette Satin Care Shave Cream, Walgreens.com, $1.80