I do not tip the cab drivers on a normal basis. I do tip them if they have helped me with bags or have gone out of there way. I don't have a golfcart so I can't comment on the gas jocky. I do tip my hairdresser. I do tip the water guy cause I don't have to bring in the water jugs. As for servers and bartenders I tip according to performance. If the food is good but service is bad I will go and tip the kitchen and/or bartender and not tip the server.
Like Captn Jeff I do not tip my pizza delivery guy because Pedro's uses cabs and charges the fee.
As for places that put an automatic tip. I have found that this is normally if you have a large group. The tip is applied because of all the extra work that the kitchen and staff had to do. Usually management does split it amongst all the staff that worked that day.
Most resorts charge a service charge this also is spread out amongst the staff. A lot of people don't realize how many people it takes to make their stay enjoyable the guys who rake the beach, pool boys, maintenance, security, dishwashers, servers, precooks and so much more. The service charge is anywhere from 9% - 15% depending on the resort.
As for tip sharing when I worked in Canada as a Bartender and Server we always had to pay out a % of our cash out to the kitchen. I always thought it was fair as they helped me do my job

I'd love to believe that's true, but a recent report showed it wasn't the case in Britain and I'm sure it's not always true in the USA or here. It's certainly not the case in France in many instances.

Before I bought my condo at royal palm.I would stay at a few differant places mostly would stay at Aqua marina suites ..Anyway I wouyld leave a tip at the end of my stay like it recommended in a envoelope.. I found out the owner never gave them any thing ..They staff new I left them five dollars a day but he screwed them anyway told them I left nothing.. ..But they just shut there mouths as they did not want to lose there jobs..When I found out I was mad thats is not nice ..When I returned the next few months I then tipped each person At the end of my stay .But got a bad taste in my mouth and never went back .The real story is the place went bust As I guess the owner treated every body like crap .And bad karma fell over the place ,pay backs are a bitch..It is now owned by sunbrezze hotel .But Think he still has the dive operation .

Capt Jeff - S0 sad but so true.

Back when I was doing a lot of traveling to the South Pacific with my underwater photo club we had a good way to handle tipping.
All of our cameras used batteries and film. We gave what ever we didn’t use to boat captains, dive masters and photo techs. These were hard to come by there.
All of our left over shampoos, lotions, sun block, etc. we left in the room with a note to the maid service to take and enjoy.
Sometimes we gave individuals towels, sandals, etc.
Money is not always the answer. Take some time to see what is needed and if you can supply it – make it as personal as possible.