Normally I'm not the type of person to carry around hand sanitizer with me, but I feel like I must take it along this year. Do I pack it in my toiletries bag or my medicine bag? If I pack it in my medicine bag do I need a note from my doctor saying that I need to be able to carry it because of a weakened immune system? I don't want to be forced to have to throw it away. Or do I just ship it down to myself and be done with it?