we didn't have anything on the tables - didn't think there would be enough room for people, drinks, food etc - our main table (with all the friends on it) didn't even have name tags - it was sit wherever you want to.

I really didn't want to have to clean up anything later that night/next morning as our wedding was at my brother's place - as it was we took the tables down at the end of the night, stacked up the chairs, folded the linen tablecloths etc - just so we didn't have to be there first thing in the morning to do it before the stuff was picked up.