The only thing you should worry about after your wedding is -- absolutely nothing. I follow-up with vendors. I verify everything was returned and any refunds will be credited. I follow-up to make sure any special possessions used during the wedding are given back to their rightful owner. I help with any mini-moon or honey-moon or travel needs so that you don't have to lift a finger to plan. Trust me, you will be glad you did this!
Some Post-Wedding services include:
Follow-up with vendors, verifying all deposits were returned
Follow-up with vendors regarding appropriate clean-up
Honeymoon planning including checking in for flights, hotels, and rental cars