Resizing In Perspective

Over the last 5 years being on DA and providing stock I've seen more than a few manipulations where resizing elements seems to be quite an issue.

The thing that confuses me is that its such an easy thing to prevent!

Thusly, I've made this incredibly quick tutorial on how to resize without getting distorted images as a result (More of a tip than a tutorial its that quick!!)

I really hope this helps newcomers to the manipping and photoshop world!
I am assuming that this will also be similar in GIMP but not having used it, somebody might need to check