Here is a small collection of keyboard commands that potentially could save the reader time, compared to constantly alternating between the mouse and the keyboard.  I can’t guarantee that these will work on all operating systems, all browsers, but it’ll take about two seconds to find out in each case:

1.  Instead of pointing and  clicking to your browser’s address bar, just use <Ctrl>L       .
2. Instead of scrolling to the bottom of a long document, whether Word or Google Docs,  use <Ctrl><End>     .
3. Conversely, if you’re at the bottom of a long document and you want to go back to the beginning, instead of grabbing the scroll bar and dragging up, use <Ctrl><Home>.
4. To go back one screen in your browser, Instead of grabbing the mouse and aiming at the small back arrow, use <Alt><left arrow>.
5. If you’re fond of tabs in your browser, instead of clicking to go from tab to tab, use <Ctrl><Page up> or <Ctrl><Page down>  .

If this list looks daunting, I’d suggest picking any one of these shortcuts, and trying it for a week.  It’ll quickly become a habit, and you’ll find yourself incrementally more productive.