Well, I diligently "brushed" my tomato flower every day to vibrate it into pollinating itself. But alas, no luck. The flower is wilted up now and no sign of a forthcoming tomato. I call phooey on the toothbrush technique. Clearly the folks who swear by it have other pollinators coming by when they're not looking. Indoor pollination in winter with no pollinator bugs... Toothbrush fail.