Sciolistes, your screen name does give it away, no ?
Anyway, re this:
Taken literally (probably not what you intended) I would need to follow my DR plan as well as monitor the GPS as well as VOR and ADF...too much.
You might be surprised, but this is the way I tend to do it. Not necessarily in your order of importance, but I certainly have my VORs and ADF tuned and monitored. Too much? Not if you're well trained and used to it. Necessary? Probably not, but I look at it as a means of staying proficient with all the kit in the a/c. As an aside, a lot of my flying is done in CAS in a country where position reports are expected to have the format XXX, YY miles on the ZZZ radial of the XYZ VOR.