I've always found over the years that keys that are easy to play in (and I'm no great shakes in that department) are not the keys that are easy to sing in (tenor-ish). A capo is OK, and I still use one, but not ideal. A few years ago I began tuning my guitar down by a couple of frets, then now and again going lower still, till I ended up four frets down. This is more comfy for my voice, but is a bit of a pig when it comes to sizing up a new set (especially on a 12-string!). Eventually it occurred to me that if I go down five frets I can tune my A to bottom E, D to A, G to D, etc. and use most of a regular set of strings plus a couple of biggies for bottom E and an extra G for 2nd string. This means, for instance, I play C and it comes out in G, or G and it comes out in D: much easier when accompanying other musicians than messing about with a capo.

Am I alone in this strange practice, or do other people do something similar? (And can I buy a matching set for this tuning that won't cost a bomb?)

Steve