The biggest mistake happens before you ever book a viewing: starting your search without a clear picture of your actual life. Set your all-in budget, commute limit and true needs first, and you'll stop falling for listings that don't fit.

The listed rent is rarely the full amount you'll pay. Before you sign, add up utilities, internet, parking, tenant insurance, laundry, commuting and moving costs so you know your real monthly total and aren't stretched in month one.