Dishwasher soap: Mix together equal parts baking soda, borax (available in the laundry aisle). Use 1-2 Tbs. per load. Each load will cost pennies. Also, use vinegar in the jetdry well instead of the expensive stuff.
DIY laundry detergent. Use Zote soap flakes and grind in food processor instead of shredding a bar of soap. I made this six months ago and still have approximately 2 gallons left. I use 1-2 Tablespoons per load, depending on size. Safe for HE washers.
Homemade Fabric Softener (My clothes are SO soft - softer than with store-bought, and smell fresh and clean. The scent of the conditioner is definitely there. This recipe makes a lot of softener, so I only made half.)