Widows and divorcees: have you kept your married name?

Or have you gone back to your maiden name when you were no longer married?

If so,
1. Why did you do it?
2. How soon afterward did you do it?
3. How long ago was that?
4. How snarly was it, legally and logistically?
5. Have you regretted it?

And what was your emotional experience of it? Whether you were happily divorced or sadly widowed, or vice versa, how did it feel for you to change your name back to what it was in your youth?

…

Bonus question: How much of your identity do you feel is tied to your name, and how has it affected you to change that?