I have probably 15 or 20 knives, maybe more, most of them small pocket knives I carried and then retired. After I have carried a knife for several years, and it has been through many adventures with me, I will retire it so it won't get lost. I can then look at it every several years and remember what we have been through together. As we age, I keep the knives in active service for longer periods of time as I find we have fewer memorable adventures together. That isn't a bad thing. I also have several serious blades that can do damage. Don't carry those. My favorite is a standard Army combat knife the Fifth Special Forces Group at Dak To gave me during my year long vacation in sunny SE Asia many years ago. And my next to favorite is a hunting knife my wife gave me 3 or 4 years ago. Both of these knives stay sharpened and ready to go, out of respect to the ones who gave them to me, but they aren't carried. Always on my belt is a Leatherman Tool. How I did without one until 30+ years ago is beyond me. I have about 6 of them, and they go everywhere with me, one at a time of course.