A little trick I figured out to get all my BP's prior to leaving. I check in for the first flight(s). Then, I go to DL.com and make sure I am logged out of SM. Click on "Itin and Check In", then "Check in Options", then "Check in for a flight now". You can then put in you SM#, Last name and most importantly, your departure airport. Works EVERY time. I'll check in at a kiosk, run to the SC and check in and print the rest of my BP's. It will not work if you are logged in for some reason.

I do mostly same day turns (get off and then right back on). Always a good laugh from the crew when I get back on and they figure out what I am doing.