I notice that one category of glove is not addressed at all. These are knit gloves with a nitrile coated palm. They have all the positive attributes of nitrile gloves, but are easy to take on and off, have good dexterity and grip, and are able to be laundered many times before the nitrile starts to break down. They come in a variety of sizes and weights of palm coating. The price per pair is around $5 but the re-use brings the overall cost down. Buying in quantity definitely helps. Regular Nitriles and vinyls still need to be part of the kit but I wouldn't be without these gloves.

Jamie

http://www.uline.com/cls_30_coated/
http://www.mcmaster.com/#gloves/=ao8kft