With apartment rents moving up in many markets renters are likely to find themselves facing a pinch in making their monthly payments. Twenty percent said they spend more than half of their monthly income on rent. Fees, including those for pets, laundry-machine usage, and cable television or telecommunications offerings, will impact a budget. Also renters should watch out for extra expenses like fees for lost keys, an extra parking spot, garbage pickup, or payment for using amenities like a gym or pool.