I just returned from a four day trip so my tip is a quick one today. If you want to make a short term dent in your grocery budget, clean out your pantry, fridge, and freezer. I cleaned mine out last week and was able to find enough food for an entire week of meals. I will only need to purchase milk, eggs, butter, cheese and a few side items this week at the grocery store. This will cut my bill in half if not more.
At the end of the week when my fridge and pantry are almost bare, it will be a great opportunity for me to make an inventory sheet for these areas. Then I will know when I need to stock up on items, saving me even more money in the long run.