With all the building that I've been doing lately, I haven't bothered to dress up much. When I'm building I just want to put on something casual that's no fuss and no frills, which I feel I can easily move around in. I want my hair out of the way, and because I have to test poses and stuff I don't want a prim skirt blocking the view of my legs or poking out in weird directions when I try to sit down.
I realised that I have a "building outfit" when I found myself putting on the same ensemble each time I went to build. Poor Karl, I once wore this for 3 days straight. He never said anything, but when I wore a dress on the fourth day his first words were: "Hot dress." *giggles helplessly*

Skin: Tuli Meredith in Sunkissed (silver shine/3) - previous group gift
Glasses: PrimOptic Stilo
Hair: ETD Keri in Chocolate
Top: *Bamboo Skai* Amy Winehouse Beehave
Shorts: (Iki) Rolled up Shorts Belted: Dark
Shoes: HOC Bolts Sneakers [40L$ on XstreetSL]
Pose: Torridwear Geometry 09

I love HOC shoes. Cheap and awesome. :]
And who needs to dress up to torture prims! You'll just get sawdust all over your clothes.
Nobody tells a girl what to wear! I say you can wear whatever you want when you're building. :D