How to ... on Ubuntu [Easy Questions]

==This content is continually updated==

1. Q:How to add/remove folders from "Places" on my ubuntu menu?
A:Open a random folder and press CTRL+B to Edit BookMarks(removing option) and CTRL+D to add the current folder.

2. Q:How to view CHM (MS Compiled Html Help) files on linux?
A:Install xchm program typing in terminal :
sudo apt-get install xchm