[M]Perform wudu properly before each obligatory prayer.
[2]Rinse mouth and sniff water into nose with the right hand.
[2]Wash each part 3 times (once is obligatory, three is sunnah).
[2]Keep wudu throughout the day — it is a light upon light.
[1]Make du'a during wudu, especially in sujood.
[1]Maintain wudu before sleeping — angels pray for you all night.
(extra):
[2]Perform wudu even if already pure — wudu on wudu is light upon light.
[2]Dry the washed parts after wudu (most scholars permit it).