There are many different reasons as to why married couples decide to have their vows renewed, some of the most common being:
Celebrating a milestone-wedding anniversary.
Wanting a more lavish wedding, that includes all of your friends and family. You may of previously eloped or been on a budget.
As a couple you have faced hardship that you have now overcome and you want to reaffirm your vows.
What to Wear?
You can wear whatever you feel comfortable in. This may include your old wedding gown or a brand new one, even something more casual. Having your vows renewed can also be a great opportunity to upgrade your wedding bands.
Anything to Avoid?
Try not to expect any gifts or parties such as an engagement party, as you are already married. However, if you have recently eloped then you may wish to add a gift registry to your invites.
Don’t feel obligated to invite anyone you don’t want to. Only invite people that make you happy.