Reading this threat had me wondering why bit cases weren't the obvious answer. It's not that I might alternate proposals - but why did it take so long to mention the style of bit organizer that is
designed for this application?
You want portable bit storage? A bit case is the answer.
I carry something that looks like this in my portable tool kit:
Occasionally I'll toss in a set of power bits like this:

Which, admittedly, aren't that easy to remove from the holder (but there are pliers in my tool bag and I don't often need these). I only use those when I want the longer style specifically.
I also have several Dewalt and Bosch bit cases, but I rarely take them with me. I never thought about it, but I think the reason is that I grab one of those when I have a specific project to work on (say I'm building a deck and need a bunch of Robertson #2s), but I tend to keep the other two styles (above) in the bag because they are bit
assortments - which ensures I have the necessary bit whatever project I happen to come across.
