I typically carry no less than 2.
#1 a small case peanut or SAK alox cadet
#2 a SAK climber (needs to have scissors and cork screw.)
#3 a fixed blade around 3 3/4" or locking folder of the same length.
If I'm in the woods I'll carry a larger fixed blade, plus an AXE and the locking folder and the SAK and small slip joint.
2 is 1 and 1 is none, that's why 3 is for me.
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