Someone else might find my 'sock glove' idea useful. Keeps the wrists warm, but unlike fingerless gloves, also allows you to type easily (this is for me sitting cold at my desk and layering up to the max!) - but I actually designed them to cover my forearms, as I get welts from grass, leaves and twigs when I'm gardening.
You get a long pair of socks, something that won't simply unravel when you cut it - i.e. not old-fashioned knitted wool, but a fine-weave modern fabric. Cut off the toe part of the foot. Then cut off the heel - put your thumb through the heel hole and your fingers through the toe hole.
There you go, an anti-plant-scratch-wrist-warming-gauntlet. Go for stripey socks like I did and you'll look *good* and eccentric. :D