So about those needle threaders you see above. That's my current collection. At the top is my old favorite, the Clover Double Needle Threader. See on the right end? Yeah, pretty unusable now, and as you see on the left end, its time of usefulness could be limited.
So I recently purchased the other two. The red one is the CottageCutz 2-in-1 Needle Threader. See what happened the first time I used it? Oops. Totally user-error, as I raised my presser foot when I shouldn't have. But still. Needle threaders are kinda fragile. And then there's the one on the left, which is the Creative Notions Needle Threader I got from Nancy's Notions. It seems sturdy enough, and after reading the instructions, I thought I had it figured out, but it doesn't
So a random bit of info I discovered recently was to moisten the needle - not the end of the thread - before you try to slide the thread through the needle's eye. The thread is attracted to the moisture and slips into the needle's eye a little easier. (credit: @trashn2tees) It doesn't work for me every time, but sometimes! But as a backup, I need those needle threaders, and if you have one that works great for you, I'd love to hear about it.