I have been a software developer for a long time. 20 years, no less. And I have never used my own software for anything. I was thinking about this, and wondering: why it is like that? I can write a decent program. What stops me?
So, I'm thinking (still not doing) about writing something to use by myself. I'm still don't know what - maybe a to-do list, maybe e-ink thermometer. Dunno.