cut corners

meaning:

1. to take shortcuts, go the shortest way

2. to do something in the easiest, quickest, or cheapest way, often harming the quality of your work

 examples:

• He cut corners going home in a hurry. (1)
  
• We've had to cut corners to make a film on such a small budget.
• Don't cut corners with travel insurance on your 2012 holiday !
• 15 Great Ways to Cut Corners and Save Some Real Cash
• Cutting corners in production led to a definite loss in product quality.