I discovered today that I purchased a piece of photography equipment and then promptly forgot about it: a polarizing filter that fits my 18-55mm and 70-300mm lenses. I can't believe I put this in my camera bag and then forgot about it! This filter is perfect for bright sunny days, as it eliminates quite a bit of the harsh sun's glare. It made for nice levels of brightness on photos I took today of our kids at the park (I definitely had much less post-editing to do than I would have otherwise on these photos!), and when I was struck by the beauty of our pond at sunset, I took these also using the filter, and again very little editing was needed in post. The colors just POP!