## 663. In the loop

## 664. In the nick of time

## 665. In the pink

## 666. In the red

## 667. In the sticks

## 668. In the way

## 669. It ain't over till the fat lady sings

## 670. It is a poor workman who blames his tools

## 671. It is always darkest before the dawn

## 672. It takes one to know one

## 673. It takes two to tango

## 674. It's a piece of cake

## 675. It's a scorcher

## 676. It's crunch time

## 677. It's in the bag

## 678. It's no skin off my nose

## 679. It's not rocket science

## 680. It's raining cats and dogs

## 681. Itchy feet

## 682. Ivory tower