I'l start with a few so that 'You Get My Drift.

And confession time also, I'm guilty of using many of these.... and often smile

It's not rocket science

At the end of the day

Bad hair day

As you do



What goes around comes around

Pushing the envelope

Do lunch

No pain, no gain

Talk to the hand

I can see where you're coming from

Moving the goal posts

Playing hard ball

You do the math

and finally,

Thinking outside the box