How to maximise the free space on a new mac installed with 10.9 or 10.10 Yosemite

There are quite a lot of unneeded applications installed such as the ilife suite, along with some support files. Its possible to free around 7GB of space. Well worth having, especially on the smaller 128GB MacBooks.

On a 256GB macbook air there is 18.26GB of used space as standard.

By removing the apps in the screenshot below you can get to 12.76GB used space.

If you also remove the folders Logic and garageband from /library/application support it will give you 11.23GB of used space.