As receptions and traditions become less formal, gone are the days where there has to be an elaborate departure for the bride and groom. Often, the couple is partying alongside their friends and family until the wee hours of the morning. There are usually a few traditions that some guests may stay to see, so make sure that you take care of these traditions earlier in the evening, if you plan on doing them at all. These include cake cutting, first dances, and the bouquet and garter tosses.
When you are ready to leave, make sure to tell your wedding party ahead of time, and they can form lines on either side for people to gather to wave goodbye and yell well wishes. Have your wedding party distribute anything you want thrown, or sparklers for them to hold. You can also place these in baskets by the exit.