If you're asking "have I ever"? Yes, but it was exceptional. I use that stuff for writing spreadsheets to do the routine nav guessing.
I'm very relieved to have dual gps moving map data-link etc., but I'm sad to see that the basic understanding of what one is actually doing in real world nav isn't being developed in crew who're routinely using only the new kit. I know pros who think VFR XC is impossible without GPS...
SASless- I think that technique was called 'off course navigation', used in Vietnam and mentioned in "Chickenhawk". Another nugget is to intentionally allow oneself to hit a limit on a predetermined side of the destination so you didn't have to decide which way to turn to it.