In one-to-one meetings with my managers, past and present, I've asked about things I could do better. I've just realised that I've never asked the people I manage the same thing. How could I serve them better?
Some people might see this as weakness, but I see it as the opposite. If I'm not getting feedback other than top down, I'm missing a critical piece.
This shouldn't be an annual thing either, but a continual process of improvement both ways.
Of course this is going to require trust, which has to be built over time, but it's not going to stop me taking the first step.