As a self confessed VFR bimbler I find NavBox Pro perfect. How could it be easier than this:
1. Draw proposed route on the PC
2. Print out plog
3. Draw route on chart for sanity check and use in aeroplane
4. Amend route to incorporate any changes
5. Print out final plog
6. Upload to GPS III
7. Go flying
This cuts out finger trouble in entering waypoints, ensures that the courses and distances work on the official CAA chart and give you a plog.