Has anyone does this? Does it save money? Everyone gets their own reusable glass to have their drinks in all night instead of renting wine glasses, beer glasses, cocktail glasses and such. I would still have a water glass at each seat for water, but they'd take their glass to the bar for drinks. Does this seem tacky? or weird if they wanted to change drinks? We already have something else we want to use as a party favor so this would be a second one. does that make it unnecessary?