Make a list of everything you will need to bring with you on the big day. Gather everything in advance and put it in one spot so that you don't have to search for an essential item at the last minute.
Keep an online database or spreadsheet with the names of all invitees and RSVPs. Use the same list to note gifts given and thank you notes written.
Do a trial makeup session with your makeup artist, or if you are doing your own. If you have sensitive skin, use your own makeup to prevent unexpected reactions.
Host a happy hour-themed bachelorette or bridal shower with our smart 'n sassy cosmopolitan recipe coaster favors. Just get the ingredients and let guests shake their own cosmo concoctions.