To have growing pains
The banker apologized for the ATM giving me fake money, claiming the new bank was having growing pains.
The rocket industry sacrificed a dog named Laika, because they were still going through growing pains.
The Chinese movie industry is still going through some growing pains.
Definition: to have difficulties in its early stages of growth.
Etymology: for a child] to have pains��which are attributed to growth-in the muscles and joints
Pinch pennies
The old man pinched pennies that he eventually amassed a fortune.
There is no need to pinch pennies, now that you're working full time.
Vincent is not pinching pennies, he just broke up and has nothing to spend money on.
Definition: be thrifty
24/7
The law firm boasted that they were open 24/7 in order to attract customers.
Susan was concerned her daughter was on her phone 24/7.
Gerald is thinking of ways to pinch pennies 24/7
Definition: all the time