Chili: I still have my younger self taste buds and love a fully seasoned chili with some heat and loads of flavor to match the heat. Unfortunately some Scoville heat levels no longer agree with the lower part of my digestive tract, so while I'll still eat, it will be a lesser amount.
In the ways of powders/ground, I have ancho, chipotle, cayenne, chili pequin, guajillo chile. And a generic "chili powder".
I have dried Guajillos, and dried chipotle.
I buy fresh jalapenos, and grew Thai chili peppers in my garden last year - as it was my first year growing them, I hadn't planted that many, and they are now gone. I like poblano chilis fresh, and buy those as well.
As far as the sauces, there's an annual event late summer, sort of a Chili Pepper Festival, and I've gotten a few of their sauces. They're all local and you won't find them elsewhere. But for a go-to sauce that is prevalent (at least in the US), I like Cholula.