I generally load in batches of a couple hundred at a time. Get some pure, unscented lanolin. Put 2-300 cases in a box. Dab a spot of lanolin on your hand that's maybe 1/3 the size of a pencil eraser. Work the lanolin into your hand (it softens as it gets warmer) and then run your hands through the cases in the box....just swish them around.
The cases will load easer and require no cleanup afterwards. Oh, the lanolin won't contaminate gunpowder either.
Most drug stores carry pure lanolin, but you'll normally have to ask the pharmacist for it....it's commonly used by nursing mothers.
A tube costs about $10 and will last for tens of thousands of cases. In fact, lanolin is the active lubricating ingredient in many commercial case lubes.