Does anyone remember using just a road atlas and those pre-planned printed route maps called the "Trip-Tik", from the AAA Motorclub? Before smart phones and GPS, I used to get those from AAA every time I went somewhere. I thought that they were the neatest thing to have when traveling long distances in unfamiliar areas. Now we have choices between numerous high tech (and former military-only gadgets) like GPS units and smartphones to get us around. Amazing world we live in.
Now I use a stand alone GPS dash unit, which has a rear view camera linked to it. I use the smart phone like others have described.