<prompt> Human: So this is my first time renting an apartment, I keep going back and forth on what my monthly spend on it with utilities should be but I keep getting stuck.Is there a method to calculate what my monthly cap should be to narrow down my search? Basically I dont want to decide on a place and then 3 months into it run into trouble  <response>: Rule of thumb is no more than 30 of your gross salary. 