I have a single password that I use to sign into a bunch of sites that don't require any real information about me associated to my throwaway/spam email acct, t

I have a single password that I use to sign into a bunch of sites that don't require any real information about me associated to my throwaway/spam email acct, that I wouldn't care if it got hacked. I also have my important passwords for which I use a combination of letters, numbers and special characters which consists of my base password. I then add another string to the end such as a word or zip code, which I rotate every 2-3 weeks depending on where I login and whether or not I feel that connection is secure. Haven't gotten hacked, yet... we'll see.