Have you ever thought of trying out a flipped classroom? I love the reasons this teacher gives for why she did. As a tutor, I think a flipped classroom would be amazing because there is more opportunities to teach to the one.
Bingo Baker makes it easy to create bingo cards. You can generate hundreds of random cards and print them using the printer-friendly PDF (with no ads or watermarks). You can also save paper (and waste electricity instead) by playing your bingo game online (it works on the iPad).