It's really frightening the number of people who end up here having searched for "how to cut and paste." That's not what this page was about at all, actually. It used to be something else. However, given the number of people who apparently don't know how, here are some simple instructions.
Select your text. (This means drag your mouse over it and highlight it).
Move your cursor to wherever you want to paste your stuff.
Right click again.
You can also choose 'cut' and 'paste' from the edit menu on your toolbar.
Or you can use CTRL+x for cut and CTRL+v for paste.
It's that simple!