gverholek, You may want to see a Physical therapist or Physical Med. MD for strength training exercises on your knees. You can also wear a hinged neoprene knee brace if you have problems with hyperextensions
It will give you warm compression and added stability.
Buckeyetrouter, The old remedy for arthritis in hands, elbows, knees and feet requiring no medications is the use of hot paraffin wax therapy. You dip into a bath of wax and let it dry and then peel it off.
As far as the Cabin fever goes, I hope to get out this weekend. I am saving my irresponsible days for when the weather is warmer and the days are longer!