I know this is supposed to be a site for food recipes, but I just tried making this homemade laundry detergent tonight and it turned out really well. Here's the quick reicpe. For further details on the process plus lots more pictures, check out:
1. Using a food processor, grate 1 bar ivory soap
2. Add 1 cup borax and 1 cup washing soda
3. mix together in food processor.
4. Use 2 tablespoons detergent for a large load of laundry
Half the price of discount detergent!