Here is an example of my meal plan:
Each week I check my favorite coupon websites to find the coupon matchups (what sales + coupons are a great deal). I write down what I want to buy (under each store) along with the price, coupon to use, and what the price will be after coupons. I also write the quantity of each item that I want to purchase.
As you can see in the example above, the first store I wrote down was Albertson's. I bought Purex detergent which was on sale for $2.99. After the coupon it was $1.99.
After I write down my list like this, I pull the coupons out of my binder and organize them in a small expandable file, which makes things easier when I get to the store. That way, I have the coupons I want to use all in one place. I still bring my binder in just in case I find a different deal.
I have found that if I am prepared a couple of days before the actual shopping trip, the stress of shopping is drastically reduced. When I first started couponing I would wake up early and try to get everything ready before I went. I ended up anxious, frazzled, and exhausted by the time I was ready.
Have a plan before you go and how you would like each transaction to be (Albertson's only allows 3 doublers per transaction). It won't always work out perfectly, but having an idea helps out a lot. I try to arrive at the store within a few hours of opening so I can get the deals before they are gone. If the item is gone, ask for a raincheck, but just make sure to go back before your coupon expires!
I frequently check fabulesslyfrugal.com for deals and I also like thekrazycouponlady.com and iheartthemart.com.