Laundry Detergent Alternatives? Anyone know of Alternatives we can use in place of expensive Laundry...

Anyone know of Alternatives we can use in place of expensive Laundry Detergent?
I would try Baking Soda with Borax that should come out cheapier Baking Soda...I reflect on.
This probably isn't for every year use but my husband and his dad are both mechanics and get real grasy and dirty dealing beside cars. My mother in law appearently other used murphy's oil soap(like hardwood floor cleaner) to get the tough grime out of their clothes. Never tried it, but it might work. Substitute 50gms of the laundry detergent near 50 gms laundry soda. Works well and ekes out the expensive detergent (laundry soda only in the order of 60p Kg.)
Answers:    It took a while to find, BUT persistence pays rotten. The most popular (and most tested) recipe for home made laundry soap is as follows:

(1) quart of boiling water
(2) bars of FINELY grated soap, preferably low fragrance
(2) cups of BORAX: 20 Mule Strong, which can be found contained by most grocery stores, with the detergents.
(2) cups of ARM and HAMMER Super Washing Soda, which again, can be found in most grocery stores, contained by the laundry isle.
(2) gallons of water

After the water is boiled, mix contained by the grated soap. Stir until the soap is COMPLETELY dissolved. Pour the soap/water mixture into pail or bucket. Pour in the BORAX and the wash soda, and the two gallons of water, Stir the mixture until all of the ingredients are mixed together thoroughly.

Cover the container completely, and use 1/4 cup for each load of laundry.
try caustic (think thats how it is spelt) soda it costs about 40p for a sizeable beg and its great on stains can be bought in any supermarket xx White vinegar make an excellent alternative to fabric softener
BAKING SODA
WHITE VINEGAR
BORAX
CLUB SODA
LIQUID DISHWASHING DETERGENT
PINE SOL BRAND
dish soap