Mine are worn daily outside of work.

1 belted plaid for special occasions
3 USA semi-trad: these are my "Sunday go to meeting" kilts; 1 USA casual
3 SWK wool, 1 each of his standard, economy, thrifty
1 Buzz Kidder canvas
2 Sport Kilts, mostly worn around the house and garden
1 X-kilt (DIY). Golly, that's 15 already!

Under construction:
1 more X-kilt,
1 practice hand-sewn in poly-wool,
1 hand-sewn in 13-oz wool
In planning:
another DIY 13-oz hand-sewn
a commissioned one in 16-oz Carolina tartan.