Add address auto fill to customer billing and shipping
It would help out a lot if on the customer billing and shipping address it was linked to a mapping service like google offers where you can start typing in an address and it begins to sch the maps and find the correct address and then auto fill in the address, city, state, zip code. This would be helpful for both the shipping, billing, and contact addresses.
Maybe also a feature to look at existing customers and verify the correct address entries as well.