I dcertainly do, Sophie.
For each application, after filling in all the boring factual compulsory bits of the form (usually 10 pages of training courses, qualifications, every job, etc ), I spend at least 10 hours planning out and crafting the wording of the required 2 page personal statement, carefully showing how I meet or exceed all the requirements of the person specification and job description.
I also do a nice single sided covering letter setting out why I am so attracted to the job and how my skills, qualifications, experience etc match the job perfectly.
I have always been good at writing these and used to be successful with almost every application but in the last few years it doesn’t seem to get me anywhere now apart from the occasional short term role.