Back in the days, when Google was still somewhat new, I tended to laugh a bit inside when my parents and other non-techies would search Google for a domain rather than to go in the address bar. They'd search for Ford or Ford.com, rather than just put Ford.com in the address bar.
Though I quickly realized it wasn't such a bad idea at all, for exactly the reasons such as this. Even I mess up domains sometimes, so I usually tend to use Google instead except for the ones I know by heart (or have bookmarked).