Anyone track their grocery expenses each month?

We all know the chokehold that Kroger has on the Cincinnati area. I mainly do my shopping at Meijer and Sam's Club because I've found Kroger's prices to be ridiculous in comparison. I throw in Hattings as well for their deli, and occasionally Target for some household items. I'd like to start tracking my monthly expenses but want to know what's considered a "normal" budget for this area.

Where are you shopping, what are you spending per month, and how many people are in your household?