I do navigation as if it was IFR always
1. Draw the route on the chart, picking up VOR radials whenever possible
2. Write up the plog (mag tracks only, no wind correction) - I might use Navbox to generate the plog as it's easier to pick up handy GPS waypoints like airways intersections etc
3. Program the plog into the panel mounted IFR GPS and verify that it displays the correct route on the GPS map
4. Call the other end to make sure there isn't anything I particularly need to know about
5. Get weather etc, check notams for entire route (Avbrief.com)
6. Fly it
During flight, I track the GPS track (autopilot en-route usually driven by the GPS) using the HSI, and have the RMI showing the current VOR radial as a constant check. So, GPS as primary nav with VOR/DME as a concurrent check. Little or no visual navigation unless doing a sightseeing trip for/with other people.