Today I started purchasing the some of the stuff I need to start developing my B&W negatives. I bought the Kodak TMAX developer. I would like to some advice about it. Should I mix it fresh strait before I use it or should I mix the hole lot and put it in my AP chemical bottle? Do I dispose of the developer after I use it or do I use it several times? How do I dispose of the developer? Do I pour it down the drain or do I have to deliver it at a chemical collection point? I did not see any TMAX Fix and Stop. Does this exist?