Where you do those rows where you slip three, you'll end up with two strands across the front. Just put your needle under them and then knit the next stitch, and when you pull the loop through for the knit, let the two strands go with it behind the needle.
This is one of those things that when you do it, it becomes easier to understand.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog