Am I right in thinking that under GDPR Equifax would have had to inform customers immediately?
If you don't want to use an encrypted password keeper and want different passwords for every site that you can remember, you could do worse than follow the Xkcd Method
www.xkcd.com/936/
Take 4 random common words as your base
Let's use correct horse battery staple as the example
Make the first letter a capital
So Correcthorsebatterystaple
Add a number and a different character to the end
So Correcthorsebatterystaple1!
Then add the first three letters of the site in question, so you have a different password for each site
For example.
Amazon - Correcthorsebatterystaple1!ama
Facebook - Correcthorsebatterystaple1!fac
Ebay - Correcthorsebatterystaple1!eba
That formula should satisfy different sites' requirements for capitals, numbers etc and be something secure yet easy to remember