As a forced mac user at work (always used windows or Linux) the number of modifier keys is really confusing. On pc you use control almost for anything, alt for very special cases (when usually control is already taken) and the windows/meta key for os-related things. On mac a lot of shortcuts use command, but some use control, and there are a bunch that use option without a real reason why, my memory really suffers from this.

The only common thing between the two is that the fn key is only used for the special modifiers under F1-F12.

I was given a magic keyboard, and my plan was to replace it with a standard one, but then I found about the keys mapping from Karabiner, and the fn key is exactly at the control position...so I started remapping.

Now, I can do almost everything with fn+key. Fn+c=command+c, fn+s=control+s and so on.