I found my glass jar at World Market in Wichita and in the second picture you can see that its nice & bubbly. This is 2 weeks out and I had added a cup of flour and a cup of warm water a few hours before..you can see that its already started bubbling again. And it smells a bit like beer. Nice & Sour.
It says to throw half away each time you add but I don't. I've been adding flour for 2 weeks and it is nice and frothy. And I've kept it on the counter in a glass jar. The first week it had alot of Hooch so I stopped adding water. The site that I got my info from says that you get a feel for it..and I have to say never having done this before I quickly developed the "feel".