Tool list for MAC OS

1. Google Chrome: browser
2. Evernote: note taking
3. Jing: screen capture
4. Spotify: listen music online
5. Dropbox: store your date on cloud
6. Viber, Skype: free chat, message, call
7. Adobe Reader: pdf reader
8. Picasa: manage and edit your photos
9. Go2shell: shortcut to open a terminal on the current folder
10. TeamViewer: remote desktop
11. MacTeX, TeXShop: TeX editor
12. TunnelBear: VPN
13. PDFwriter: Virtual PDF Printer, the output files are stored in /Users/Shared/PDFwriter
14. VLC media player: flac player

MAC OS tips for Windows users

1. Rename files: There is no context menu or F2 keystroke to rename files, folders. To rename them in MAC OS, you need to slowly click twice on the files' or folders' name. Then the name will be editable and you can enter a new name. (Note that this is "slowly click twice", not "double click")
2. Lock Screen: At first glance, you don't see the "lock screen" option with the "shut down" option when you click the Apple symbol. To have a shortcut to quickly lock the screen, in the Launcher, run "Key chain access", in the Preference, General tab, check the selection "Show keychain status in menu bar". After you check this selection, there is a padlock icon in your menu bar. You will find the lock screen shortcut when you click on that padlock.
3. Mouse scroll direction: The default mouse scroll direction in MAC OS is different from the one in Windows. If you want to set the scroll direction as Windows, go to System Preference, Mouse, and uncheck the selection "Scroll direction: natural".
4. Click on Trackpad: At my first try, I don't know how to do a mouse click on the Trackpad. Actually you can do a mouse click on the Trackpad by pressing it. However the pressing requires some pressure. To make it easier, you can go to System Preference, Trackpad, Point and Click tab, and check the selection "tap to click". Then you can just tap on the Trackpad to make a mouse click.
5. Display Desktop: As a habit in Windows OS, you often want to display the desktop. In MAC OS, you can press Fn-F11 to display the desktop. In addition, you can display the desktop by a mouse move. Go to System Preference, Desktop & Screen Save, Hot Corners, then in the new windows, you can set the action when you move the mouse to the corner of the screen.
6. Change Fn Key Priority: Just go to System Preferences, Keyboard and check the selection "Use all F1, F2, etc. keys as standard function keys.
7. Associate Program to run file: To change the default program to open a file, In Finder windows, click to select that file, then select File, Get Info. In the Info windows,  click the grey triangle to disclose the Open With panel. Then you can select the program you want to open this file. You may wan to click Change All to apply this setting to all the files are the same type as this file.
8. Open photo without having to double-click every photo: Select a photo, press Space. Then use Up and Down arrow to move among photos.