This has been going on for several weeks and unfortunately we can't take advantage of them, but Seattle to Rome round trip in the next 30 days is currently $441 (American, British and FinnAir). It's usually about $1200! If you have the flexibility to drop everything, do it.
FWIW, I use airfarewatchdog.com to set up email alerts, but I'm sure other sites do the same.
I am counting the days to retirement.