Well as far as sterile mine are not...
I have a 6" Cold Steel folder in my front right pocket. I've cut green tree branches and small logs and it still shaves hair. Left side is an old Sog folder for most things and also a small fixed blade for a wallet decoy.
I've got a well used Kobalt tool with both a smooth and heavy serrated blade plus a slot for refiller razors I like to use at work.
Sometimes I carry any number of 3-7 inch fixed blades.
If I'm benching I have one in a front pocket and at least the other 2 out in the vehicle.
I spend all night scared of tomorrow, only reason I aint killin, suns up, when it gets dark im back to the park, cut through the back im after the heart, creepin through your hallway with a knife, had it all planned, therapist callin me all day, I know you love it when I eat meat, I love it when the brains hit the concrete!