Stretch laundry detergent and dryer sheets
Clothes come out of the laundry surprisingly clean and fragrant even when you use far less than the recommended amount of detergent. Generally speaking, people just don’t get that dirty. Every time you buy detergent, split the new bottle into an old detergent bottle and dilute them both with water. You’ll get more value for your money this way.
Furthermore, soap buildup on your clothing is bad for your skin. Adding a dash of distilled white vinegar to the rinse cycle will help remove soap and eliminate odor. Dryer sheets have gotten increasingly expensive, but half a sheet usually does the trick. Cut your dryer sheets in half and save!