I only carry four. I took the cylinders out of my back door and back-alley gate and had a locksmith rekey them to take the same key as my front door. Because I hate carrying a lot of keys.
But one of the four is my car key, which (like most modern remotes) is gigantic, and I hate it. KeySmart isn’t doing jack for that.
Also, if you’re trying to minimize what you carry, don’t carry a bottle opener. I use a disposable lighter if one is handy. Otherwise, I use whatever is handy. You encircle the bottle with your fingers just under the cap, and use that as the fulcrum. If you do it right, it pops like a Champagne cork, the cap flies across the room, and when you retrieve it, it has not been deformed.
