I bought a latte whip a while back, and I don't use it too often, though it's nice some cold mornings to be able to make my own latte or fluffy hot chocolate.
However, today, I used it to make an amazing vinaigrette. Just some olive oil, red wine vinegar, a touch of balsamic, a little salt and lots of fresh black pepper... it whipped up SOOO quickly, and I had it on a fresh herb salad. MMMMMMM.