Changing name by deed poll to match kids surname

[Ding3kids]

Has anyone gone through the process of changing your surname by deed poll so you have the same as your kids?
Just wondering whether it's simple enough or ends up quite costly?

[thegoatwhogotthequiche]

Really simple and cheap, the only faff was writing to everyone that needed to know. Other than that it was easy...I did it while pg with DC1.

[Ding3kids]

Did you use a solicitor or just online?