Here are some ways you can use to make resizing the window an easier, and enjoyable task.
1. Alt + Middle click
At anywhere in the window, press “ALT” key and the middle button of the mouse and the cursor instantly become an arrowhead. You can then move in the direction that you want to resize.
2. Press At + F8
The “Alt + F8” hotkey is a quick keyboard shortcut to activate the resize mode. Once in the resize mode (with a translucent overlay), you can use the arrow key to resize the window horizontally or vertically. Once you are done, hit Enter to return to the window mode.
3. Configure own hotkey via Compiz
If you are using Compiz, it comes with several more options that you can configure. Open your CompizConfig Settings Manager (System -> Preferences -> CompizConfig Settings Manager). Scroll down the list to find “Resize Window”.
Click on it to enter its configuration page. From here, you can enable and assign the hotkey for different resize mode. In this example, I have enabled the “Initiate Outline Window Resize” mode and assign the hotkey “Alt + Super + W” to activate it.
That’s it. This should solve your window resizing woes.