Hi Sharon - thanks so much for keeping this up!
1) Bethesda/MD/Marriott
2) CL officially closed, but I was able to get in for water/soft drinks. Security guy said they locked it at 10 pm, but I didn't check
3) no coupons, but when I asked the FD said I was entitled to free breakfast for 2 - my room number was on 'the list'
4) (if the lounge is closed, if it's still room key accessible on the weekends for sodas/water) yes, reportedly until 10 pm
5) there's a terminal and printer, but I didn't try them
6) 5/1/11