Newlyweds..Future Brides Need to Know

Hi !
As you think back on your wedding date, there are things that you probably might have done differently, forgot, or wished you didn't put too much attention or emphasis to things that happened. I'd gather the answers (hopefully you all answer and will have tons of tips for us future brides) and I will post them in the BHB section for us, the Future Brides.
TIA!!
And hope that you provide us with things that we should probably think about, or things we should take into consideration when planning etc....
Please Post Away and Thanks.

ETA>>Also, something that you were thankful that you did on your day and something you paid attention to...etc...