The type of laundry detergent you use is a fairly personal choice. Most detergents are very effective, and most of us end up using what is on sale, or what we are used to. The only things to consider are whether or not you have hard water, or if you are regularly laundering particularly dirty clothing, or if any one in your family suffers from allergies due to fragrances and perfumes. Finding the detergent that works best for you is usually a case of trial and error of the products that are in your price range. However, detergents that are highly inexpensive are usually of a lesser quality and you may not end up saving any money by purchasing them, as you will need to use more with each load.