What to do with sock yarn ends?

Wondering what yarn ends are? It's the yarn left after you've done knitting. I guess other types of knitting will have leftovers too but I tend to knit more socks than anything else so I have a lot of sock yarn ends. One of the gals in my knitting group hosted a baby shower for a gal who is new to town and I figured I'd just knit her something. Ended up being two somethings! Both of these patterns were free on Ravelry (you need to join this site if you knit or crochet). The nice thing about the sock yarn is that it's thin enough for baby things. This isn't as soft as some of the baby yarns out there but it should be fine.

One of the things I learned with this pattern was how to cast on in the middle of a row with a second yarn. I had SUCH a hard time with it ... until I thought to turn to YouTube ... only to find out that I was holding the yarn wrong .. such a simple thing! I♥ YouTube!