Quote Originally Posted by tkamiya View Post
Let's share how we avoid such mistakes then....

My rule is simple. NEVER have more than one bottle open at any given time...

It's pretty easy to make careless mistakes. I try to avoid it by doing the above and making it a habit.
Agreed!

I do the one-at-time thing, too. I also reread the label every time, before pouring anything.

I just started experimenting with Diafine. If I get the two parts mixed up, I am screwed. If ANY amount of Part-B gets into Part-A it will be ruined. Therefore, I need to double down on paying attention to what I pour, where and when or else I risk trashing $50 worth of chemistry.

It might seem silly at first but, after a while, it becomes a habit.