Shampoo Caddy

This is a shower caddy for holding your near-empty shampoo bottles upside-down!

Many modern shampoo bottles have a flat top that allows you to set it down top-side-down. Unfortunately, the brand of all-natural crunchy-granola urban-hippy shampoo that I use does not have such a top. I either cannot get to the last little bit of shampoo or I have to do something creative with the bottle: balance it, wedge it against something, or do a quick centrifuge-style flick of the bottle. None of these