Here's a list of the tools that I use on a daily basis:
Kevin's Diamond Dusted Dental Picks. A personal necessity.
Herb's Silver Brush. Another Necessity.
Herb also has a slightly lower grade brush available to members of Numistreasures
Tony's Pins for Pins Vises. I find myself using these more and more.
3M Radial Bristle Brushes. Cheapest I've found are at Progresstool.
Toothbrush, medium bristled, roughly 1/3 trimmed
Renwax. Rasiel seems to be the cheapest I've found (if you buy the large container)
Soft Nylon Brushes to remove Renwax safely and effectively. I like WidgetSupply. They have hundreds of different Dremel accessories. Most are useless, but items such as the brush are very useful. Decently priced with excellent shipping time and service.
Distilled Water
Sodium BiCarbonate (Baking Soda)
Sodium Carbonate (Washing Soda) Can fe found in some supermarkets, most likely as Arm and Hammer Washing Soda. I bought mine online since I couldn't find it locally. A 5 gallon bucket, with shipping, was around $30 I believe
Miscellaneous Dremel bits inserted into pin vises. I really like a tiny diamond dusted ball, as well as a diamond tipped fine point engraver that I bent to around 35 degress. Most can be found at widgetsupply.