thanks so much for all your replies! i definitely won't wear white if there's any chance of rain. my white sandals are khaki on the bottom and a white strap on the top.. so they won't get as dirty as if it was just regular white. here's the pic:
WhiTe J.Crew SandaLs!
(click on the white strap color)
also.. i know it's a bit early to be thinking about all this since i still have 4 months.. but i'm just so excited. i can't help it! =)