While I have both garter ties and flashes, I tend to wear flashes more often...

As for a knife (I'm guessing the rcmp would be able to give you the scoop on legality if you're in canada) I wouldnt wear one if i didnt usually... And in MO a fixed blade would I believe be seen as a dagger (defimite no no) so unless it's either blunt or for a special occasion I'd probably leave it home...