If you know your position (fix) from a VOR/DME station and you know your destination as radial/DME from that same station, well you're fixed!
This is a very simple means to find your way in "self-induced IMC" conditions (yes, it means you are lost!) .
Soon, I will also provide here an explanation on this navigation technique using your good old CRP5 or equivalent. Stay tuned!
The mobile application allows you to practice this navigation technique. Have fun!