This. I keep one in between my (rubber) phone case and phone.

Though at this point we should just move to tool free sim slots like with Sony phones.

I carry a sim ejector in my wallet for just-in-case situations

I use one paperclip per week, and the only time I have one with me is when I'm doing that one thing on Monday morning. Other than that, there's one bowl full of them which is actually in the same room as the pile of miscellaneous stuff that includes the real sim ejector gadgets.

Heh, I never seem to have a paperclip handy even in non emergency situations

It has been several years since I've seen a paperclip.