I learned how to add a second color of yarn! Way back when I used to crochet, I didn't know how to add a new skein or a new color of yarn. I just tied the two colors together and continued crocheting. This resulted in color changes in the middle of a row.
Thanks to the Mighty YouTube, I discovered a tutorial showing how to add a new color.
This opens up so many more options in my knitting. I can't wait to learn more!