I just was bored to open the #introduceyourself of @photocontests (https://steemit.com/introduceyourself/@photocontests/readme), to see the relevant hashtags. So i decided to make a quick overview for print out.
Download Cheat Sheet as PDF:
Because there is no way to include PDFs into a post on steemit, i had to put this PDF on my website. See here: http://steem.wellseo.de/cheat-sheet-photocontests-21-01-2018/
Download Cheat Sheet as Image:
I think you should know how to download an image.