Lance:
Don't understand about not allowing a pill splitter in carry-on luggage. Pill splitters -- at least the kind we use for veterinary pills -- are too insignificant to be used as weapons on anyone -- except a tablet.
Magic:
Don't worry about not taking your meds on the dot at 6 p.m.
I take my warfarin at breakfast -- that may be at 6 a.m., 7 a.m., even 9 a.m. And if I'm traveling and am on the West Coast of the U.S. (Pacific Time), breakfast may be 2 hours later than back home (Central Time). I don't worry about it.
I do keep a bottle of 1's, 2's and 10's in my desk at work -- because most of the time I refill my 7-day container during the workday. I keep extra in 3 different travel bags, at work & at home.