3) Examples

'We need to ensure that official documents are useful and comprehensible. The Plain English Campaign has a splendid track record in nudging us all towards making this happen.' Sir John Major
Let's see how it happens.

Before and After Comparisons:

Example 1
Before
The playroom is carpeted. Don't go in with your shoes on. Take off your shoes and put them on the rack. Don't leave your shoes on the floor.
After
Take off your shoes and place them on the rack before you enter the playroom.

Example 2
Before
If there are any points on which you require further explanation of particulars, we shall be glad to provide such additional details as may be required by telephone.
After
If you have any inquiries, please phone.

Example 3
Before
Put on your school blazer when the temperature is lower than 17 degrees Celsius. You can add extra jacket on top of the your school blazer only when the temperature is lower than 12 degrees Celsius on freezingly cold days.
After
Put on your school blazer when the temperature is below 17 degrees Celsius. Add extra jacket on top when the temperature drops below 12.

Example 4
Before
It is important that you shall read all the notes, advice and information opposite; then complete the form overleaf prior to its immediate return to the company by way of the envelope provided.
After
Please read the notes opposite before you fill in the form. Then send it back to us as soon as possible in the envelope provided.

Example 5
Before
Put the cart back to the right of the entrance after using it. Don't leave the cart here and there.
After
Put the cart back to its place after use.

More examples
http://www.plainenglish.co.uk/
http://www.plainlanguage.gov/