Well, it makes a change from trying to solve the problems of the world.

Tuning the E string down to a D is easy enough, but then your standard G chord and C chord fingering won't work, which it will with this. And you can't do it on impulse in the middle of a set of tunes, whereas this you can.

Another way of using two capos is mentioned in a great litle book called The Irish Bouzouki, by Niall Ó Callanáin and Tommy Walsh (Waltons, Dublin. "Niall has a system of using two capos, one of which can be easily flicked off for a quick down change, the other being already in place for the new key."

So I'm not the only fella around who likes to get by without retuning, and has a lazy way with chords.