If you use MS Streets and Trips there is a nice add on for it that shows nearly all truck stops, rest areas, truck washes, WalMarts and even a seperate list of WalMarts that do not allow overnight parking.
The add on is called Truck Stops Plus. As a truck driver and RVer I have found this to be a the most useful item on my laptop next to RV.NET.
Ham radio 73's from Gale N8GS
2009 GMC 2500HD Ext cab, LB 4x4 Duramax
2006 Cougar 290EFS (RK) Axle wt 8200#, Pin wt 1760#
2 Honda EU2000i IOTA DLS90 converter
4-Trojan T1275's(600Ah)+470W of solar w/ Outback FM-60 CC
Samlex 2000w PSW inverter
Then load the POI's into your GPS unit and S&T. All for nothing.
Travel is fatal to prejudice,bigotry,and narrow-mindedness,and many of our people need it sorely on these accounts. Broad,wholesome, charitable views of men and things cannot be acquired by vegetating in one little corner of the earth all one's lifetime.