Have a blog where readers often ask the same questions ? Give the Auto Responder a try and save your support time !
For documentation and tips, please refer to the official plugin page for <a href="http://planetozh.com/blog/my-projects/wordpress-comment-faq-auto-responder/" title="FAQ Auto Responder" rel="nofollow ugc">FAQ Auto Responder</a>

Ozh' FAQ Auto Responder

Have a blog where readers often ask the same questions ? Give the Auto Responder a try and save support time!

Tired of regularly logging in and clicking the “Remember me” checkbox? No more. With this plugin, once 
you have logged in and until you voluntarily log out, your blog will remember you.
The ‘Remember Me’ checkbox on the login form will be always checked, and instead of logging you in for 14 days, the expiration is set to one year.
Related: for your localhost hacking, see plugin <a href="https://wordpress.org/extend/plugins/no-login/" rel="ugc">No Login</a>
<h3>Support</h3>
On <a href="https://github.com/ozh/always-remember-me" rel="nofollow ugc">Github</a>. I don’t read WordPress support forums.

Always Remember Me

Always checked 'Remember Me' checkbox and longer auth cookie expiration. Your blog will remember you.

Ozh' FAQ Auto Responder vs Always Remember Me