One squeaky annoying shoe?

So about a month or two ago, I saw these really cute black and purple tennis shoes. They are Stride-N-Tone. A non-marking skid resistant shoes. And a week ago I took a two hour walk in the snow and there was some water puddles. But there was nothing wrong with my shoes at all. Today, I am walking though the hallway, alone, and I hear the most annoying squeaking sound coming from my left shoe! So I tired walking on the tips of my feet, still squeaked. So when I got home I Googled answers. Like, break the insole of the shoe and put baby powder there, use WD40, a hairdryer to dry them, hand lotion, vegetable oil, fine-grit sandpaper and fabric softener. And on each one it said something like "I use ___ and it made the squeaking go away in a second" and I use ALL OF THESE THINGS and guess what? Still a squeak. My shoe squeaks on carpet too! Please, anyone give me another thing to try. I love these shoes and I don't want to go out and buy another 60 dollar pair of shoes if I can fix this problem with some random house hold object. Please help. :(