Many successful people like to give back / get by to their community once they've made money.
give back
If you're not careful with online shopping, it's easy to take on/ run up into debts.
run up
When it takes on / comes to saving money, my grandmother always has great advice.
comes to
The thief had been gettin away with / saving up small crimes for years before he was finally caught.
getting away with
Before choosing a phone plan, you should shop around for / follow up on the best price.
shop around for
She's been giving back / saving up all year so she can travel next summer.
saving up
After the meeting, she promised to follow up on / shop around for the client's questions.
follow up on
I already have a lot of work, so I can't take on / get by another project right now.
take on
When I was a student, I didn't have much money, but I managed to get by/get out of debt.
get by
It took him almost five years, but he finally managed to get out of debt / run up.
get out of debt