Cafago offers the X6 Ultra HD High Denifition Digital Camera for $11.03. Coupon code "DZ29J" cuts that to $9.80. With free shipping, that's the best price we could find by a buck. It supports 1280x960 video resolutions and 1280x1024 still images, features a 3-hour battery life, and has an microSD slot (expandable up to 32GB).
Note: This item ships from China and may take up to two weeks to arrive. Also, the countdown timer on the product page does not reflect an actual expiration time and resets daily.
If you aren't using any of these three methods for significantly saving on laundry detergent, you are washing money down the drain.