A bird in the hand is worth two in the bush
Absence makes the heart grow fonder
(to) act one's age
(to) add fuel to the fire
A drop in the bucket
A little bird told me
All in a day's work
Armed to the teeth
Backseat Driver
(a) ball-park figue
Dog Days
My Two Cents
The Black Friday
The Good Samaritan
Donkey's Years