Should I be checking with the bride if my dress is a suitable colour?
Normally I wouldn't worry (as I don't wear white to weddings) but dh is best man so we are closer than usual to the wedding party.
I also want to use the dress again for SIL's wedding. I know it will not match with her colour scheme. Is that good or bad?
Can you tell I've not been to any weddings where we are super close to the bride/ groom!?! 
Maybe MNHQ should produce an etiquette book! :)