If you do a lot of UI (user interface) designs, there’s a really good tool out there that lets you quickly and easily create UI mock ups!
It’s call Balsamiq, but a company called Balsamiq Studios. It allows you to create software mock ups in minutes! It’s a really efficient way to have the layout of your software design up quickly without you having to write any code.
Balsamiq is a really useful tool and I highly recommend it for anyone. You can even try it for free at their website.