I had to do something similar and it wasn't easy, maybe someone can chime in with something better. Are you wanting POI's or an optimized route? The POI's would probably work, I'm guessing you could only do a few houses per day, then you could setup different routes with tyre.
1 geocoding
2 text edit
3 POIEdit
4 Tyre
As far as the geocoding, I prefer this
http://www.gpsvisualizer.com/geocoder/ as it leaves the address attached to the coordinate info. You need to paste only the addresses....street, city state zip
cut the results, save as text
POI Edit needs the longitude then the latitude. Open with a spreadsheet as a comma delimited file, then switch the first 2 columns. Save as ***.csv
Open in POIEdit. Save as tomtom file (***.ov2)
If you just want POI's you can stop here, but this is where the fun begins.
Open with Tyre. From there you can load them up with the Google maps feature. Click on a text entry, it's point is shown on the map. Or click a point on the map, it's text entry is highlighted. Now, move them up and down until things are arranged in a logical order. In Tyre you can now save as an itn file, then calculate the route using the Google maps feature. If you don't like the routing you can still change after it's been saved as ***.itn
Bear in mind, your tomtom can only use itinerary files with 48 points. Your 200 houses could be 1 POI file and four itineraries.
let me know if this is too simple or too complicated or if I missed your point.
