I have also recently starting sewing with knits! And you know what, they are not bad at all! Why do they make it out to be such a big deal? Knits are so much more comfortable for them to wear, and it's a total thrift store up cycle fun hunt! I"ve up cycled two shirts for Nathan, and a few things for Sydney. Fabric stores don't seem to sell too many fun prints in knits, so it's all about up cycling old stuff!
Here is a dress i made Sydney. The top (stripes) are from a knit shirt I got at Target on clearance for just a few dollars. It was an XXL so I can easily get one or two more shirts out of it for her!
bottom is a quilters cotton. I actually adds a little too much weight to the knit, it seems to droop a bit. But all in all I like it!