(We know: this doesn’t quite qualify as a “beauty” item, but in our mind it makes sense to talk about it here…) We’ve been fans of the cushion-y, almost gel-like inserts that you normally put under your toes for years now — so we were intrigued when we were sent free samples of the Insolia “weight-shifting” insert, which is a hard piece of plastic that goes beneath your heel and below your arch. “Keep trying them out,” the product engineer urged us — “they’re a little like a contact lens for your foot.” (Which is true — it feels like there’s something in your shoe at first, and then you get used to it and it feels like there’s nothing there.) After one wearing, we must say we were even more intrigued — we survived a night out with some of our highest heels! — and have continued to have good results. We can’t explain the science behind it, but we will definitely be giving these a try the next time we have to wear heels that are higher than our comfort zone. You can get 3 pairs at Amazon for $19.97, or buy them direct from the Insolia website, where code corporette will give you a 15% discount through June 30, 2010.