From another post.. I thought this might be a good idea.. List the things you've witnessed at other weddings and thought, wow I will make sure to remember not to do that!
- Elevator music until well after dinner.. so there was only an hour of fun dancing..
- paid for uplighting at a 1pm wedding, so you couldnt see it at all!
- nowhere designated for cards.. I've seen people walk around clueless as to where to put gifts/cards
These may not bother everyone, but others may have seen things they can suggest and we can all take from it!