Before I retired I traveled as much as 60% of the time. Before razor blade restrictions came into play I had no problems with carry on luggage. Once these restrictions began I either checked my bags, mailed blades to the hotel I was staying with, or left them with someone I knew there. I would call the hotel in advance and tell them I was checking in on a specific date and that a package would be sent to me. Never had a problem. A few times if I was returning to the hotel in a few days I would leave an envelope containing the blades at the front desk and told them I would pick them up in a few days. In fact, one time the assistant manager handed over my package to me and told me the package was safe and was locked in a safe!
But as always it's a matter of YMMV. If you travel as much as I did you had to adapt. You could use a cart or you could take steps to shave with a DE.
