Nothing on but the radio

Usually I walk to the post office, but I had a large parcel to mail today and, in this heat, decided to drive. On my way home, I caught a radio commercial (no, my radio is not always tuned to NPR), the first sentence of which was:

Before you go house shopping, get your mortgage pre-approved first.

How is that redundant? Let me count the ways. On second thought, I think it makes a splendid exercise for the reader.

Everybody needs an editor.