To clean the dishes...
WASH UP.
To stop the function of something...
TURN OFF.
To start the function of something....
TURN ON.
To reduce the use of something...
CUT DOWN.
To make something or someone clean and neat...
CLEAN UP.
To discard something...
THROW AWAY.
To experiment, to test...
TRY ON.
To investigate, to examine...
CHECK OUT.