Just put the company headsets back when you're done using your own.

Leave the pedals and seat where they were.... not all the way down on the floor and all the way forward.... what worked well for you will probably be fairly close to what will work for the next guy/gal. The few exceptions to the rule will need to change them anyway regardless.

and... stop putting 1200 in the transponder, espeically at DCA. Yes, the subsequent crew is responsible to set the right code... but if they miss it, it's much better to be on the wrong code, then to be on 1200.

On the FA thing... they have a job to do, it isn't the easiest job in the world, and neither is ours. Will I help them if it fits into my time, yep... especially on the go to the hotel flight... the sooner we're off and out, the sooner I get to bed. That being said, if I get the feeling that the FA is expecting me to do their job instoead of just "helping out"... then he/she can catch up with me at the hotel van.

Dump your trash when leaving the airplane; that includes the multiple copies of People, Stuff and the WSJ.... ok, you can leave the WSJ... But, please take the food remnants with you or at least brush the crumbs off the seat.

end rant