I use a 50/50 solution of Sta-Flo like others here. I don't see a need for the febreeze, but I guess it would be nice if it smelled nice.
I have no problems with flaking. I saturate it with the spray and toss in the dryer for a few minutes. I LOVE the effect. My points were pointy, my seam connection perfectly match, my bias edge triangle things don't warp or stretch. I cannot preach enough about it.
I was a beginner when I started using it. I started to dabble in more triangles and funky shaped pieces. While I'm more of an advanced beginner, I wouldn't have been able to piece so accurately without the starch. Sta-Flo is great and so much cheaper than the sprays at the store.