Leafovers

Leafovers is a Chrome extension that puts short annotations on any web page. Right-click wherever you are, type a reminder, and it will be waiting for you the next time you return to that address.

Annotations can be pinned to a chosen element, resized with a colour and text size, or kept out of sight until you point at them. Everything you write sits together in a separate window, and an optional sign-in carries your annotations to the other machines you use.