Make sure all the joints are completely filled with sand when compaction is complete. Your weekend project is now finished and it is time to admire and enjoy. When properly installed, pavers require little in the way of maintenance. They may develop surface blemishes from mineral salts leaching through them. This white, crusty film is called efflorescence.
Cleaners are available to remove it if necessary.
It will also weather away on its own. Moss often grows on pavers in shaded areas. If you find moss offensive, use a dilute solution of bleach and water to remove it. A common complaint is weeds growing between the pavers. They are easy to remove through hand pulling because their roots systems are quite restricted.