How to effectively work with multiple files in Vim?

Reference: Http://stackoverflow.com/questions/53664/how-to-effectively-work-with-multiple-files-in-vim
You can use tabs (introduced in Vim 7) to switch between tabs with:tabn AND:TABP, With:tabe <filepath> can ad d a new Tab; And with a regular:q or:x you close a tab.

If There is not the many files or you don't have Vim 7 can also split your screens in multiple files:: SP <filepat H>. Then you can switch between Splitscreens with CTRL+W and then a arrow key in the direction you want to move (or instead O F arrow keys, W for Next and W for previous splitscreen)

How to effectively work with multiple files in Vim?