Can one pane of a double pane window be safely removed?
I have successfully and very gingerly broken the interior side of a double pane window and removed the shards and chips with pliers and fingers--again, gingerly.  The stain/fog inside had made them look unattractive and blurred the view. I hit carefully with a hammer in a lower corner, and started pulling from there.  However, the inside of the outer pane--which remained--had lots of stain on it.  It took a while, but with lots of rubbing, even with SOS pad plus vinegar plus kitchen soap, most came off.  I had to remove the wood trim to get to it, but the frame from the window remained.  I put the wood trim back, did a little careful wood dough filler, and it looks as good as new (if you don't look too closely).  Cost:  0