Learning to knit again - sigh

The other day when I was giving DBF's mom a refresher course in knitting she mentioned how some of her stitches were twisted. I thought she had done something wrong so I knitted a few rows and compared it to her work. Exactly the same, with the twisted stitches. I couldn't figure out why.

Tonight, I looked up some stranding method videos on knittinghelp and I noticed that she somehow knitted differently. I took a look at the basic videos again. OMG.

It turns out I purl combined, but I knit continental which produces a twisted stitch.

I could correct my purl but I tried it on a bitty swatch and it was so tedious and slow. I decided to learn how to knit combined. Very sweet.

There's a whole thing about how decreases and increases are different due to the twists. I guess I'll have to learn those again.