I like the taste of vinegar, too, but not with my coffee. I never thought of using peroxide. But, ever since I've been using bottled water in my coffee pot, I have not had to clean it for 5 years! It runs through just as fast as first pot, too. I guess bottled water has no lime or any other minerals, so nothing to clog it up. Voila!
Has anyone used one of those "Pur" water filters? My daughter says it is the best, but I wonder if it would take away the salty taste of my softened water, or if I would have to use water from the outside faucet, to get it before the softener? Thinking about trying it. She says the filters last a long time. I'm skeptical. It WOULD be more convenient, though ...