Also a note on Marriage Certificate....

Don't carry around the "fancy" one that you get at the wedding ceremony...
You need to show the "official" one from the births/deaths & marriages. (It looks a bit like a birth certificate).
Many places won't accept the 'fancy' one.

It takes ages to change all your names. So many things you forget... and stuff like passports are a pain to re-do.

But you can update your drivers licence, and get a new photo... and they don't charge you!