ITA, the in-store lighting totally sucks. I have to go outside after trying on foundation, it'll drive me nuts going back and forth to the store if I don't.
They always want to match me darker, two shades or so. I try to come in with a tank top or v-neck top on so they can see how ridiculous it looks to have an NW 45 face on an NC45-ish body
*sigh* MAC doesn't match me perfectly so I don't even let them try to talk about foundation when I am there. I am always in between two shades for most makeup companies)...Story of my life