I am going to make the Hershey chocolate cake that we all love. I already have the measured out dry ingredients in a zippy bag. Just cream the butter and sugar and finish adding the dry ingredients and it will be in the cake pans in six minutes.
I have little snack zippy bags and they are great for measuring out the dry ingredients for the frosting. By measuring out all the dry ingredients ahead, I can make the cake whenever I feel like it. But the best part, very few ingredients.
For major meals when the kids were small, the pressure cooker was my best friend. In an hour I could have a Yankee Pot Roast on the table after we got home from church. I had the veggies all prepped the night before and in the fridge in water.