Homebrew PCBs

Hi, I have yet to find a suitable container for the etchant (I use the 
muriatic acid thing).

It is true I can use any sort of plastic container: I even have one of 
those kits, with acquarium pump and bubbler and heater, but the main 
problem is that it is basically impossible to store safely, as it cannot 
be properly sealed. Pouring back to another, safer container can be 
still be problematic because of spills and such, and then I always have 
to wash everything, that takes time to do properly. Also, as I never do 
boards bigger than the standard 10x16 cm, I feel like a smaller 
container with "not so much" etchant would be so much better for my needs.

Any advice?

I have reached a point in my PCB making that I can do very fine boards, 
no problem, but I waste a lot of time in taking care of details, and I 
want to make the whole thing more streamlined.

bye
as