There are many things we can do on daily basis which can make our lives better and make future better for our kids and ourselves. Most of these things are overlooked or not stressed enough. Lets start with cheap way to save some money and make world a better place.

Replace all the bulbs [...]

You type: rm * -f
You get: /bin/rm: Argument list too long
Reason: in shell when you do * after rm and get Argument list too long, your shell actually expands that * and puts all the filenames after rm and since length of the command line is limited, you end up getting [...]