"You don't know where you parked your car anymore? Have you ever wondered how far your are away from home and in what direction it is? GpsSpot from Cradle Software uses the build in or attached GPS device to show in what direction and how far a previously saved spot is."
A few months back I was looking for a GPS gadget that did exactly what this software does - guide you back to a specific GPS location that you've tagged. This is exactly what I needed, and at an asking price of 2.90 Euros, it's cheap enough that even if you only use it a few times a year, it would be worth it. Unfortunately it's for Windows Mobile Professional devices only, not Windows Mobile Standard devices.