Come prepared with a pre-approval. This will help your agent locate properties which you can afford, and not send you into apoplexies when the $700K house you love is not on the same planet as the $360K mortgage which you can procure.
Aside: I intended to add more and publish later, but accidentally hit “publish.” It sounds like a flame, but it’s not. Perhaps more of these digestible one-liners are in order? Comment to let me know what you think.