Personally I set the following in /etc/sudoers:
Defaults timestamp_timeout=0,passwd_tries=1
I find not having to enter a password for a certain period of time rather annoying, especially when ssh is lagging or when I am typing without paying much attention. If you so wish, you can also set the option "rootpw" for the above, which will make sudo require the root password.
I also set a small number of specific commands to require no password for sudo, mainly for common things like network configuration and suspending. These are defined for the absolute paths of the executables, and only for my user, so they aren't a security risk.
I find not having to enter a password for a certain period of time rather annoying, especially when ssh is lagging or when I am typing without paying much attention. If you so wish, you can also set the option "rootpw" for the above, which will make sudo require the root password.
I also set a small number of specific commands to require no password for sudo, mainly for common things like network configuration and suspending. These are defined for the absolute paths of the executables, and only for my user, so they aren't a security risk.