I just have to post about my favorite drink mixes, for a very selfish reason--it has disappeared from my local store, and I'm worried that someday it may disappear completely. The product is TrueLemon, and it comes in about 8 different flavors, I like all of them. This is a great product if you need a quick drink, along the lines of Crystal Light.

This drink mix comes in small packets, each mixing with 16 oz. of water, very similar to Crystal Light. But unlike other mixes, it contains only very small amounts of sugar (1g per serving) and Stevia as sweeteners, no artificial sweeteners and very few calories. The flavor is not terribly sweet, in fact some may want to augment it with more sweetener, but I find it about perfect now that I've weaned down a bit. The flavors are made from natural citrus oils and juices.

Currently I'm ordering it online in fairly large amounts, but if anyone knows a chain store that carries it, I'd love a back up source.

https://www.truelemon.com/

This is their website. It has a store locator, plus if you give them your email they will give you 20% off your online order. In my area, it appears that lots of stores carry this - Walmart, Target, most of the grocery stores also. Hope this helps. I've never tried it, but could come in handy when traveling to add to my water. Thanks for the info and recommendation.