Q&A: How would you modify a shampoo bar formula to be a “no more tears” product?

In this month’s Q&A, Alexandra asked, I have two kids neither of whom are great at keeping shampoo suds out of their eyes. How would you modify a shampoo bar formula to make it a no-tears one? I currently have SCI powder, decyl glucoside, cocamidopropyl betaine, and foaming apple surfactant in my stash, but I’m happy…