I know exactly what you mean. I also have to wear clip-ons and I’m fine with that, but they are so rare to find in most retail stores. I got lucky this past summer and found 5 pairs at a local retail chain.
And just before Christmas, at the same store, I found clip-on converters for pierced earrings. I think I’m going to be in trouble this year as I foresee my earring collection growing exponentially.