My first real ruby project. I chose to use Sinatra because it seemed really quick to learn, as opposed to rails.
The idea behind this site is that you group items using the colours on the left. For example, when I'm going shopping I group all shopping list items in blue. You can click an item to strike it through, which I've been using as a sort of "done" state before deleting the item.
I've been using this tool a lot lately, and it has helped me pay attention to the finer details at work.
http://www.listabulous.co.uk
Code for the site is here:
https://github.com/AndrewVos/Listabulous