[C210N]

You are looking for everyday carry, and this one may or may not fit that criteria. But, for what it does, may still be worth it (see descriptions). It literally can do anything you ask it to do, and more. Based on capability, it is a bargain.

[9YearLurker]

Price on Amazon: $10K.

[GingisK]

I have carried the “Officer” Swiss Army knife for many years. It is not too large but features the tools needed in everyday life. The real question is, how in the world can people go through life without a pocketknife? Those people are cripples.