A scheduler to prepare starter for baking (Excel)

Hi,

Here is a tool I make in Excel to help me when I need to prepare some starter for a recipe.

I believe that it's easy to understand how it works, and it may help all those poor starter-maniacs.

A little help anyway is on the spreadsheet page, to begin.

http://rapidshare.com/files/436906212/Starter_preparation.xls

Any advice, opinions or ideas, is welcome.

Happy baking to everyone

Dimitris