My FI are attending a wedding this Saturday. I've already spent approx. $40 on the bridal shower gift and $25 on wine for the bachelorette party. Do I also give a gift at the wedding? Would it be okay to give them a check in a card? How much? I've never been to a bridal shower/bachelorette before this (only the actual wedding), so I'm not sure of the "proper" etiquette for gift-giving.