Way to block out portion not to be printed

Sometimes we don't want certain part of our document to be printed. I have thought of a way to block this part in part and would like to share my knowledge with readers.

It is very simple. All you need to do is to place a textbox over the part you do not want to appear in print. Right click the text box and go click format textbox. Go to colour and choose white. You can see the part block visually even before it is printed. Print this documetn and you will have the part unwanted blocked in print.