Cut your coat according to your cloth
Definition 1 of 1
Pro Tip 1/3Resource Awareness
Understand the importance of managing expenditures based on available financial resources. 
She made sure to cut her coat according to her cloth when choosing a vacation destination.
Pro Tip 2/3Avoiding Debt
The phrase encourages avoiding debt by only buying what you can afford without borrowing. 
Max decided to cut his coat according to his cloth and buy a used car to avoid loans.
Pro Tip 3/3Income Adjustment
Suggests that lifestyle changes may be necessary if one's income decreases. 
After her pay cut, Emily remembered to cut her coat according to her cloth and cancelled her gym membership.