I am traveling from SDF to Reykjavik via IAD and I have a 4 hour layover. Since, alas, I am flying economy on Icelandair, I don't have any lounge access through them and since I am not flying on a SkyTeam carrier, I can't buy a day pass to the AF lounge (if anyone knows differently, please do let me know!).

So, assuming I cannot get lounge access, does anyone have any suggestions on where I can set up camp and word, read, relax a bit reasonably comfortably without spending a fortune? I haven't been to Dulles in about 20 years, so any advice would be greatly appreciated!

Thanks!