To start with, ignore the bashing that some posters seem to think is needed here, it doesn't appear that you are trying to stiff anyone who would normally expect a tip, but are looking for strategies to avoid situations where tipping would be expected. I use many of these myself to save money. One note, as previously mentioned, airport shuttle drivers are typically tipped if they help with luggage, otherwise there is nothing on your "next" list that would require tipping.

A couple of other comments:
1) For non table service, you are not limited to McDonalds and KFC level of fast food. Panera, Chipotle, Panda Express, Crispers, Baja Express, Atlanta Bread Company, Qdoba, and lots of other places provide tasty food at reasonable prices and don't require tipping. Take out pizza is another option.

2) I avoid the mini bar since prices are high and the selection is low. I typically find a local liquor store where I can get some good microbrews or a small bottle of whatever. I usually either drink in the room or by the pool, taking your own to the lounge could be against the rules, or at least considered tacky.