The carmen curler-era liquor trolley is back in vogue as service provider du jour. now known as bar carts, they have a retro flair to them that is a breath of reliably fresh air in these turbulent times. Their purpose is to be a station for a choice of beverages, over and above wine. so remember, if you want to serve cocktails from them for a crowd, as opposed to spirits and mixers, only a barman can do that right. no civilian is an effective martini mass production line at 8:00 pm on Friday evening.