I've used a variety of valve core removal tools, and keep one on every bike. You don't need it until you do, and when you do there's nothing else that works. I've pulled mine off during group rides when someone fixed a flat and accidentally pulled their core. I've loaned it to strangers on the side of the trail. These are practically invisible and fit on your valve stem so you don't have to rummage around in the bottom of the bag.
I painted mine red easier to spot when they are on the ground . And I cant see them
