I do something similar. Most of my passwords include one certain string of characters that I can remember easily. For instance, it might be "Rosebud" and one of the full passwords might be "Rosebud1000." Instead of including the "Rosebud" portion on my list, I replace it with a codeword such as "password." Then when it appears on my list, it looks like "password1000" and I know that means "Rosebud1000" but nobody else could use the list without knowing the Rosebud part.