Personally, I think you also need a neck knife, a boot knife and a junglas in your car. Oh, I forgot the peanut in your coin pocket.
Your still forgetting the Vic Classic on the keychain, that's a requirement. Than the axe in the trunk along with duct tape and paracord and you really feel like cheating, tarp as well so you can easily build shelter if the car breaks down in the middle of no where. Along with some water purifiers, caned foods, case of bottled water. Just skip the MRE's they taste horrible.
Now that my slight sarcasm is out of the way. I can't really say anything because I carry 2 knives on my keychain a Vic Rally and Leatherman Micra to fix things and than whatever I plan on carrying to cut things with. Which right now I rotate between a Rough Rider Canoe, Ka-bar Dozier, and Kershaw Cryo. And I keep clothesline or paracord in my trunk to tie things down with (there is a couple points between the seats and metal structure behind it with holes I can loop it through) so things don't slide around in my trunk and get damaged since I keep my trunk pretty clean.
As for duct tape I have fixed my car with duct tape more times than I care to count. Heck the current permanent use I have as of right now is it's holding my driver side door lock/unlock button in place (but you wouldn't know by looking at it or using it as it's behind the button). As for the water and food it just comes in handy when your on the road for awhile you can pull over and grab a bottle of water and a bag of beef jerky or whatever small snack to hold you over till you find a nice place to eat. I try to keep a few spare bottles of water in my car at bare minimum because I work out a lot and sometimes I feel like doing so longer than I plan so I can just go back to the car and grab another bottle of water so I don't get dehydrated.And I have family members who keep towels or old blankets in their vehicles for when they move dirty things so they don't get their car dirty, strangely enough I didn't pick up that habit. Though I do keep almost a complete tool kit in my trunk that can allow me to dissemble and reassemble almost every part of my car if I need to and I have had to use it more than once on either my vehicle or something else I encountered along the way.
As for me the 2 little keychain knives have allowed me to fix various electronics over the years that I otherwise wouldn't have been able to fix until I got home and allowed me to continue doing what I needed to do. So to me their worth their weight in gold. On one occasion I saved my cellphone after it recieved some water damage on a camping trip so I could completely disassmble it and let it air dry, so it only had some dead pixels instead of a dead phone. I also can't get by with just the 2 keychain knives as I ditch my keys frequently when I can (when we take a friends car, I enter someones home, my home, etc) but my primary knife stays in my pocket and is the one tool that gets the most use. All the tools/equipment I carry are generally in my trunk with the spare tire, the knives I carry you would probably never notices unless I told you as there are 2 small ones on the keychain and another in my pocket. But each have their use and each have served their purpose many times over.
Point of the things I posted above is that things may look in excess unless your actually using them. If your carrying them just because you can and never use them yeah your carrying too much. So my advice carry what you need, don't carry what you don't need.
(And no I am not one of those guys who say 2 is 1, 1 is none BS. I just see the use in each of the tools I carry and have used them to their fullest and have found that between playing Tetris in my spare tire compartment to fit
ALL my tools/equipment in there is well worth the hassle so I can do things properly. And if you have ever suffered from heat exhaustion/dehydration it's pretty dang self explanatory why someone who works out a lot carries extra water with them.)
While there are times throughout most work days when I have three knives on my person, it's usually two; a 3" to 4" folder and the tiny Micra. But I'm never far from considerably more.
