Let Google Growl!

I've been using the Google Notifier for quite a while now and it works great except for one small gripe - the notifications don't use Growl. I've now found a plug-in called Google+Growl that adds Growl support. It works along side the Google Notifier and allows you to configure how you want your notifications to display.

Waffle Software also have a cool Color Picker plugin that allows you to enter a Hex code or HTML color name.