Everyone is right on so far. With our current bidding system, the schedules can be all over the place. The good news is, if you are in the 756 fleet you can back all your trips up and work 14 in a row if that's what floats your boat.
I'm a 2yr 756FO in EWR, sitting about 60-65% in the seat and have 96hrs with 15 days off this month including Thanksgiving, surprising since I didn't ask for it. I was originally awarded a 15 day off line that was worth 83 hrs, but since it's nearly impossible to actually flat out drop a day due to our staffing, I traded my schedule around for more productive trips on the same days I was working anyway.
Two Europe trips, three 8-9hr daytrips, 10.5hr vegas two-day, and a couple other daytrips mixed in there (MCO turns). If you do three "daytrips", they are usually more productive than doing a 3day Euro-trip (three PBI turns is 18hrs of block, most Euro trips in my seniority are less than that), but the Eurotrips will be much more commutable.
That's an unusual schedule for the 756 out of EWR, though. The fleet does mostly Europe flying with late starts and early finishes, very good if you are a commuter. I live relatively local, so I don't mind doing the daytrip stuff.