Finally, however, I uncovered the culprit. And what do you suppose that culprit was?
1- Laundry? Since I do my laundry with some regularity (I'm no Martha Stewart, but then she has people do her laundry for her. I'll bet in prison, she had someone launder and press the zippers on her orange jumpsuits. But I digress.) No, the laundry was not the smell.
2- Garbage can? Again, I empty the garbage with some regularity (at least before the trash reaches the ceiling), and I have been known to spray Lysol in the can before replacing it with a clean bag.
3- THIS WAS THE CULPRIT:
It was not this exact one that was the culprit, but something similar. ROTTEN POTATOES. Not having a pantry, my wonderful husband who is perfect in every other way stores our 5 or 10-lb. bag of potatoes on the DRYER. (Or maybe I put this bag on the dryer). Anyway, since potatoes fester in heat, and what is hotter than a DRYER, the leftover potatoes decomposed into a smelly, slimy, festering mess.
When I uncovered the mess, there was oozy brown and green slime on the dryer, on the bottom of the blue laundry basket on the dryer, and at the bottom of my laundry detergent box. My friend Mahina was over watching a movie with me at the time. Like the true pal that she was, she fed me paper towels and various housecleaning products until I banished the smell (mostly) from my house.
We opened windows, lit a scented candle, and sat down with a bowl of Tillamook Udderly Chocolate Ice Cream covered in Magic Shell and finished our movie.
Case solved and noses happy.