By this time, you shouldn't be worrying... if you are - you probably missed our previous 2 Weeks to go post. Regardless, fret not!
Typically, in the last two days, here's what you should be worrying about
- Eat healthy, sleep healthy
- Try your wedding garments one last time. Ensure all clothes are ironed
- Double check all wedding accessories
- Relax, relax, relax. Meet with all your guests and have fun
For anything else remaining, delegate! Just have your bud do it... They're going to eat, drink and make merry at the reception, so go ahead, use them lavishly 
Happy Celebrations!