How much do you spend on Laundry Detergent?

How much do you pay for laundry detergent? Today I just spent $13.15 for 540+ loads of laundry detergent! I made my own laundry detergent during Ashlyn's nap time.
A couple months ago I was watching the Duggar's and they were talking about all the things they do to make their money stretch and one of the things they do is make their own laundry detergent. I thought it was a great idea but not for me, I mean come on who make their own laundry detergent! Then my sister-in-laws made a batch and raved about how easy and most importantly how clean it got their clothes. So as I started to finish off the bottle of detergent I was currently using I bought all the ingredients to make my own.

Here is the recipe:

4 Cups hot tap water
1 bar soap (Fels Naptha, Ivory, Sunlight, or Zote)
1 Cup washing soda
1/2 Cup Borax

Grate bar of soap and add to sauce pan with 4 cups hot water. Cook and stir constantly over medium low heat until soap is melted.
Fill 5 gallon bucket half way with hot tap water. Add washing soda, borax, and melted soap then stir until dissolved. Fill remainder of bucket with hot tap water.
Let bucket sit overnight to thicken. Stir the detergent as the detergent will have separated. Pour detergent in a cleaned leftover laundry container half way, fill the other half with water.
*Shake before each use as the water and detergent will separate*

For top loading machine use 5/8 cup of detergent per load
For front loading machine use 1/4 cup of detergent per load

I timed myself and it literally took me 20 minutes to make the detergent. I figure you can always find 20 minutes in your schedule to do something you consider important, and I consider saving this much money worth my time. Plus, you know my laundry will be expanding in another 6 months!

Here is a cost break down:

Washing soda $2.89
Borax $2.98
Ivory Soap $1.07 (3 bars)
5 gallon bucket $4.24
Bucket lid $1.27

Total: $13.15+tax

This makes 180 loads for a top load and 640 for a front load machine.

I had to purchase the washing soda at Harps since our Walmart did not carry it. You can find this and Borax with the laundry detergents.
I have enough ingredients to make two more batches and maybe enough borax and washing soda to do 4. The cost of the bucket is the most expensive thing and I won't ever have to purchase another one. So, if I can make three full batches of detergent from these three ingredients it will now only cost me $.04 per load!