I have just made a starter with NO package yeast, 'catch wild yeast' like in the old days. I put my jar on the counter and opened the window while the breeze brought in the wild yeast to 'make' my starter. Amazingly it worked perfect for me.
http://www.reformationacres.com/2010...h-starter.html
Sign up for her newsletter and get the chart to make just the amount of starter you need for a recipe.
I made tortillas yesterday and they are crazy easy to make with 3/4 cup of starter.
http://www.reformationacres.com/?s=tortillas