Restaurant Tipping on Wine

[Davemiller]

This has beeen a topic of much discussion in our restaurant lately. Our wine list is as exceptional as our food and service. Most of the time customers will tip on the entire bill without thinking about it. A very few well traveled folks that spend a hefty sum on a given bottle will clearly not tip the full percentage on the wine but typically let their server know, verbally, why the tip seems low compared to the tab. Problem: as many restaurants do we add an 18% service charge to the bill on any table of 5 or over. We would like to set up a system that is friendly to the wine lover who wants to spend some bucks but protects our servers from cheapskates at the same time. Any ideas?