Bubbles solution

My Daughter loves bubbles and surpisingly so does my 10 week old puppy, they both like to try to pop them! So when I see a ton of dish soap or shampoo on sale I stock up for bubbles. you could just dilute the soap with water, but I like to add a little more, here is an easy recipe, that you can make for a fraction on the cost than buying bubble solution

2/3 cup Joy dish washing soap (or shampoo if it's a good deal, don't add as much water)
1 gallon water
2 to 3 tablespoons of glycerin (available in pharmacies or chemical supply houses)