Here are helpful tools I use to keep my vacations stress-free. You might find them useful, too:
Password Security and Convenience
www.lastpass.com – Bonus: Don’t get locked out of an important account when you travel (or at home!). I remember just one password to access Lastpass. It stores all my passwords and logs me in to any accounts I want without me having to remember and enter the username and password myself. You can use the free version on your computer. I use LastPass Premium (about $1/month) so I can use it on my computer and my mobile devices.