I keep an empty 'square' kleenex box for snippits and what nots . Toss it all in garbage when done.. Its the season when we use kleenex the most so I will have a new one before my other one gets too filled up..
I use a glass spaghetti sauce jar to mix and keep my home-made starch.. it already has measurements on it.. just pour each till the lines cover and shake and whoala !