Thanks to original pinner who said: I think I'll try this next time. The appliance repairman told me using the self-cleaning feature takes years off the life of an oven. The best oven cleaner! Cover bottom of oven with baking soda, then pour vinegar so it's all wet. Let sit around 20 minutes or so then wipe all of it out with damp cloth or sponge. I leave my oven door open too. After drying you may see some white residue, wipe again.
Wash your towels in hot water with a cup of vinegar, then run again in hot water with a half-cup of baking soda. That will strip your towels from all of that residue & mildew smell & will actually leave them feeling fluffy & smelling fresh. This really works!