I'm with you on cutting yarn, if I change my mind I have all those shorter pieces. I can and do cut it when I need to but I want to be sure I need to. The videos you found are great, they show you exactly what you want to do. I think I'll try her method of using the tail as you knit the first stitches.
Cheating is an option. . . . Cheaters never win and winners never cheat, but smart knitters who want to retain an iota of sanity do, cheerfully. ~~Kory Stamper