I must say im surprised at the response of this thread. Given the more important issues of fatigue, pay, conditions, intimidation, chapter 11 resulting paycuts and pensions, etc .. this thread will surpass them all in responses.
And I know I now are included in these responses.
Pilots should clean up their rubbish, throw away empty cups, wipe any spilled coffee in the cup holders after flight.
Only selfishness and arrogance would preclude this.
However they do not have time before flight to do spring cleaning with a vacuum cleaner, and should not be required to. Cleaners come on the aircraft to do that before each sector.
I would not be opposed to using a dustbuster in the long cruise sectors, but would it be wise to poke around the controls and equipment during flight.
Over and above the wipeing of screens by pilots, and vacumming by cleaners, the flight deck should be thoroughly spring cleaned in the hangar during each check, whether by engineers or cleaners cautioned over the care required with expensive equipment and risked of blocked or damaged controls.