I also use KeePass2. It generates very strong passwords for me and I can safely store them in KeePass as well and I always have them in case someone forgets, and it is free to boot! The password length defaults to 20 but you can change that as well. In my experience 20 characters is just too much for most people, so I lower it to 8-10.You can also set up folders so you can keep your Production, QA, and Development environments separated. Nice! 😀

http://keepass.info/download.html