Better way? Sure... either a program like Password Safe where you keep ONE password to 'open the safe' for access to various others if you must have others. (there are several free programs of this sort)

or... a single PW with slight variations using something like a keyboard pattern....such as QWERTYUIOP backwards with odd (1,3,5,7...etc.) numbers in between letters, followed by your dogs name.

I use EITHER a weird keyboard pattern (that is easy to remember but looks random) OR a combination of Latin botanical terms not likely to be associated ...with numerical endings. I have not needed to change either in 10-12 years.