An obvious one...

It's so funny, this has been bugging me out since I got to the site and still I haven't remembered to say anything.

I'm talking about the vault login, everytime I enter, I have to enter the username and password

What I'm suggesting here is a "remember me" check, or something like that. Hope I could help, it's just a simple yet annoying thing...

See ya,
Yours truly, dedicated, gamer: Crackjunior1 :D