The computer is now an indispensable tool in many Businesses.
The utility model discloses a butterfly book clip for students which is an indispensable tool for clamping book when students receive a course, read and extract.
Over the years, the PC has transformed from a hobbyist's toy to an indispensable tool that continues to change the world.
But - as I described in my book, the Long and the Short of It - having a realistic target rate of return in your mind is an indispensable tool for the sophisticated investor.
A chisel and a hammer are indispensable tools for a sculptor.
They are indispensable tools for any management accountant but, as Irecently found, they can also be applied to situations that are far removed from the world of work.