Fill a basin with iced water. Blow your breath lightly upon its surface while concentrating during 5 minutes on how you this water will rid you of all negativity that has piled up throughout the day, visualise yourself swimming and diving in this pool, sunshine and a luxuriant garden or nature, being the background.
Rinse your hands in the water while concentrating. After that, throw out the water and rinse the basin.
It is the symbol of water as such, that is the main ingredient in this method. Water as a purifier, water as a life source, as a regenerator. It is a very efficient way of resourcing.