1Password is FREE for iOS today (9/17/14)
You just have to remember one password. Just one, and you'll have access to every single password you've entered.
Q: "Why would I need this? I use the same password for every account I have."
A: Because it's not safe to just use the same password for everything - once someone figures out one login, they'll figure the rest out to your bank accounts, your emails, your private information.
Regardless of whether you decide you want to use it, I would suggest downloading 1Password for your iOS device (iPhone, iPad, iPad Mini) now. I'll paraphrase a client's favorite quote:
Better to have it and not need it, than need it and not have it when it costs $40 again.