Ipython magic commands

Hello! I am currently working my way through part 1 and have spent some quality time reading ipython documentation to see what I might be missing. I recently came across the !ls command, which can be used to assign the files in a directory to a list variable in python. So far I’ve used this command to easily pull image files into my jupyter notebook.

I thought this was very cool. %debug is also useful. What magic commands do you like? Alternatively, do you have any tips / tricks that you think would save people time?