Activity for Sheilah

Has anyone been looking or has bought there wedding dress online? If so where from and is it a reasonable price. Because honestly I feel like I dont need to buy a $600 dress for one day.

So I've been trying to plan out dates and deadlines. And wanted to know, when is the best time to send out invitations? How many months before? We want to get our catering payed at least 3 months before (our weddings May 4 ,2019) what would you...