Just wondering what  special twist and little touches are you adding? Just to give your guest alittle something extra. 
Things I gave added so far are;
Valet will put a bottle of water in cars of guest at end of night. 
Hotel shuttle.
Late night munchies station.
Bathroom baskets. 
Live music for cocktail hour.
Welcome bags.
These are just a few of mine. Would love to hear what others have done or have seen at weddings.
Thanks