Get flash to fully experience Pearltrees
A Reddit user has created a custom Unity launcher that lets you upload documents to Google Docs using drag and drop and once the file is uploaded successfully, it opens the document in your default browser. The script was then improved by another Reddit user and I've combined everything and slightly modified it so it works with any browser (initially it was using Chromium "apps" and you can still use that if you want by editing the file) so it's easier to install.
Gnome Shell Weather extension displays the weather next to the clock in Gnome Shell.
A note before reading this post: before giving up on Unity without giving it a try... don't. Try Unity for a few days - yes, it's not a finished product but it's actually quite interesting - and if you don't like it then switch.