If you miss the foaming action of the old soaps that are toxic and harmful, don't think you have to go back to them. You don't.
What you can do is use a foaming bottle. They are awesome, you can find them online for just a few dollars or even at local stores like Bed Bath & Beyond.
If you have never used one before, make sure to put your water in first and then you cleaner. You know what is a huge added benefit? You got it - they save you money too. Now you can take your super concentrated green cleaners and make them last even longer.
Your kids can play with them in the tub and pretend to be Santa and Daddy and everyone without feeling like you are washing money down the drain. Yes, you got it - a natural safe bubble bath for pennies. I just use my hand wash in them.
My teens even use their natural skin care wash in a foamer at times. And my younger one, now shaves with daddy because he can pretend it is aftershave.
There imaginations are wonderful and amazing.