Simple local hosting
Sometimes you just want to host some files locally on you machine. For instance when debugging javascript with webworkers importing javascript files, it is required that these files come from a web URL instead of a file://-URL.
Just saw this great suggestion on Stackoverflow. Start a local webserver using Python or Javascript and you now have the files available at http://localhost!
sudo python3 -m http.server 80
or if you do not have Python 3 installed
sudo python -m SimpleHTTPServer 80