We use these at work, and once set up they're a breeze. But that's a big "once". It also makes life needlessly difficult if you want to log in to something fro

We use these at work, and once set up they're a breeze. But that's a big "once". It also makes life needlessly difficult if you want to log in to something from a new/borrowed/etc PC and don't have the keys handy. Where needlessly = near-impossible.