Yes. You should use razors more than once - you will know they are ready to be replaced when you feel as if they are tugging at the hairs rather than cutting them. Alcohol is a fine disinfectant, although it is likely not necessary to disinfect the blades after use (just give it a good rinse and let it air dry).
Yes, you can pack disposable razors in your carry-on luggage.
Yes, the TSA permits disposable razors in carry-on luggage.
Yes, TSA disposable razors are allowed in carry-on luggage.
Yes, disposable razors are allowed in carry-on luggage by the TSA.
Yes, disposable razors are allowed in carry-on luggage on planes.
Yes, disposable razors are allowed in carry-on luggage on planes.
Yes, disposable razors are allowed in carry-on luggage as long as they do not have a removable blade.
Yes, disposable razors are allowed in carry-on luggage according to TSA regulations.
Yes, disposable razors are allowed in carry-on luggage according to TSA regulations.
Yes, disposable razors are allowed in carry-on luggage according to TSA regulations.
Yes, disposable razors are allowed in carry-on luggage according to TSA regulations.
No.