First, I have two tupperware containers that have a musty smell. I've cleaned them numerous times to no avail. I can easily throw them away (and will if I fail at this again), but they're great sizes, so if anyone has ideas, I'm up for one more try. Similarly, I have one of those reusable water bottles that's made from some type of lined metal. It also contains an unpleasant scent that refuses to go away despite multiple cleanings and soakings.
Finally, a cuisinart pot that has tarnished terribly. I tried using easy off, but had no success. It's possible I did not leave it on long enough.