I've been doing this over many years and lately noticed it's become so subtle a technique it seems to slip the "procedure" radar.

If you want to go to Brazil and have yourself a time there , then change your passwords to things that either relate to Brazil or you being there.
When typing in the passwords become perfunctory and the association of the meaning of password to it's intent is lost (to whatever account) and it then kind of just fades out , the subconscious then starts processing it.
Takes time and it's an ingrained effort.The caveat here is that you need to undo the option that offers to save your password for that particular site , write the password down yourself each time , till it's second habit.

Worked for a friend , and I knocked it before I tried it , now I'm putting my money where my mouth is.