Q&A: Have you combined different surfactant thickeners in one product?

In this post on bubble bath, Liquid bubble bath: The process and formulas, Allison asked, Susan you mentioned here having many different thickening ingredients, and I’m wondering if you’ve ever combined more than one in a single product? I look at manufacturer’s formulations online, and I’m noticing that some will use something like Glucamate DOE-120…