If, like I did for several years, you rely on using the arrow keys instead of hjkl, disable the arrow keys in your vimrc. It found it incredibly painful for may

If, like I did for several years, you rely on using the arrow keys instead of hjkl, disable the arrow keys in your vimrc. It found it incredibly painful for maybe a couple of days, but now using hjkl is like second nature. The efficiency improvement from not moving my hand back and forth between the arrows and the home row is not insignificant.