Since I've been using my Macbook for a few months now I'm still trying to find the keybord shortcuts I used on other operating systems.
Window Management
Close the current window = Command + W
Close all open windows = Command + Option + W
Shift between browser tabs = Command + Option + Left or Right arrow
Show all open workareas in Mission Control = Control + Up arrow
Text Management
I find it problematic when writing and navigating in text or code because I frequently use the "Home" and "End" buttons on the keyboard. But on Mac these keys perform differently from what I am used to. For example, when pushing "End" key the cursor jumps to the end of the document instead of to the end of the line. This is irritating and I need to find a solution to the problem.
Mark text from left to right = Command + Shift + Left arrow
Mark text from right to left = Command + Shift + Right arrow
Go to beginning of the line = Command + Left arrow
Go to end of the line = Command + Right arrow
A note about the specific Mac keys
Command ⌘ key is the Windows key on a Windows keyboard.
Option ⌥ key is the Alt key on a Windows keyboard.
Control ^ key is the Ctrl key on a Windows keyboard.