I'm using Kubuntu 14.04 and I'm asked for password when:
I don't want to write any password. Never tell me the risks.
It still ask me for password when installing programs with Muon.
Sudo: write in terminal sudo visudo, go to the end of the file, press o, then type yourUsername ALL=(ALL) NOPASSWD: ALL. Press Esc, then type :wq!.
Automatic login: Alt + f2 -> User Manager -> Check Automatic Login
Automatic software updates without typing password: type sudo -s, nano /etc/crontab, go to the end of the file and type 30 14 * * * root apt-get update (updates will perform every single day at 14:30). Then you press Ctrl + x, y, Enter. After that you can do the following to remove notifications and don't worry about updates: Alt + f2 -> Update Manager -> More -> Configure Muon Update Manager.. -> Uncheck "Show notifications for available updates".
Disable KDE Wallet password request: Alt + f2 -> KWalletManager -> Settings -> Configure wallet... -> uncheck "Enable the KDE Wallet subsystem". The internet password and so will still be remembered.
