$300 Monthly Grocery Budget: Family of 6

Is your budget tight? Are you looking for real ways to cut your grocery budget. I am a full-time online student, mother to 4 children, ages 5 and under, and wife to a husband that between work and school is gone for 60+ hours each week. I, like you, don't have the time or energy to clip a bunch of coupons and drive to several different stores each week. This month I'm opening my life to share with you that it is possible to spend less, eat well, and not spend all day in the kitchen.
Join me on instagram, facebook, and twitter as I share regular updates and tips on this project. Then be sure to check back here on the blog every week for my meal and grocery plans.

Things you should know:

• This is for a school project on provident family life. I picked all the factors and wanted to find a way to incorporate things I'm already doing with something that will be a small challenge.
• I have a 9 month baby that eats some table foods, a 2 year old that is hit and miss on eating with no real rhyme or reason, a very picky 4 year old, and an always hungry 5 year old that can eat almost as much as a teenager.
• I normally pull foods from food storage, but for this project, I will factor all of the prices in as if I bought it that week/this month and I will use current grocery store prices. I won't necessarily use the same name brand prices, but I will use the lowest price of a brand I would be willing to buy and feed my family. 
• I am only shopping at (and using prices) from 2 local stores: Kroger and Aldi
• I live in central Ohio, where the cost of living is comparable to many, but lower than other areas. To see if this is realistic for your area, compare prices for the same items in your area.
• Recently, I have been spending about $100 at the grocery store each week. So $75 will be pinching. 
• We have chickens that lay eggs, so I won't be factoring in the cost of any eggs we eat unless I need to buy a carton from the store. I will be using our eggs, but calculating them by the store's lowest price.
• I will be showing you both my plans and what actually happens 
• There are some products I will buy/substitute for this project that are slightly different from my usual, because I am trying to make this as applicable to as many people as possible. I'll explain each of these as I go along.

What is your favorite way to lower your grocery bill?