Bought a Too Light Foundation? Tips on How To Make It Work

"Oh No...What a waste of money!..I look like a ghost wearing this foundation. Damn that SA at the counter..she sweet talked me into buying this color and now I'm stuck with it. Arghhh.. now I'll need to think of how to get rid of this and again have to buy another one"!Sounds familiar? I bet it does. All of us have at least 1-2 foundations that are either too light or too dark for our skin tones.