What kind of signage do you currently, or have previously posted in your vehicle, and how effective was it? ie: tipping, door slamming, eating, smoking etc. Please share with us your experience/ideas.
Check out my tablet tipping thread. I averaged $50 in tips a night on Friday and sat night (only time I drove) I haven't been out yet since tipping in app started, ill be adjusting my tablet accordingly to see if it still helps.