This lives on my keychain alongside my Maratac AAA every day. It’s a lot smaller than the SOG, but because I’ve always got it on me, I use it a lot more. Despite being smaller than a lighter, it’s made extremely well and is very tough, I rely on it for much larger tasks than I should, but it hasn’t broken yet.
The PS4 is new this year and, as the name suggests, combines scissors and pliers in the same tool. Having this on hand means you can adjust things on the bike, cut zip ties, remove a hang nail, open a beer or do umpteen other things without going into your bag for a bigger tool. Ridiculously handy.