Manually installing DEB packages

Old way:

# install package
sudo dpkg -i /path/to/package.deb

# also install any dependencies that got missed since dpkg is not dependency aware
sudo apt-get install -f

New way:

sudo apt install /path/to/package.deb

In this case the path must be an obvious path (prefix with ./ if installing from current directory) to prevent apt running off to remote repos.