Well my friend showed me a neat little function on Modzilla Firefox the internet browser I use. I assume they all have it but I never knew about it!!
If you are for example reading a long text about how to tune up a tablesaw, but just want to find where they are talking about aligning the blade. Press ( Ctrl f ) and another toolbar will pop up, type align in the box. It will then search through the text and find the first time it says align, if that's not exactly what you were looking for you can press next and it will go to the next (align) in the text. Seems to be a pretty good time saver.