Found this trolley at IKEA - really good for storing all my tools. Whenever I need it, I simply pull it out under the cupboard under the stairs.
Product page: http://www.ikea.com/au/en/catalog/products/30227974/
Nice. I think I could use something like this, my tools aren't exactly organised at the moment.
I have one of these too! It's so handy that you can wheel it around. I went for the turquoise colour.