on rain and plastic pain

I’m not sure what the weather is like in fashionable parts of the world right now but I am sort of getting the impression from various streetstyle blogs that it’s considerably cooler and nicer elsewhere than it is in humid and drizzly tokyo. From around may to mid-june we had fantastic weather so I spent most afternoons in my back yard or on the school hill soaking up the sun, all the while naively thinking that monsoon season would never hit. But did it ever. All we’ve been getting for the last couple of weeks is rain rain rain! My tan is rapidly fading, and what’s worse, japanese spring semesters don’t finish until early august which means I have a good two more weeks of school to go. Two more solid weeks in which I will have to come up with different rainy day outfits when I've sufficiently wringed my brain of all possible ways to incorporate havaianas into my daily wear (I hate to ruin leather heels and sandals in the rain so plastic is the only way to go). But since I cannot break out a pair of rain boots in midsummer, crocs are out of the question, and most emo japanese girls are wearing alexandre herchcovitch for melissa wedges which means I really really don't want to go there, havaianas are probably the best option I've got. At worst they are too flat (I am a small person and I need heels!) and at best they are something different as most people in tokyo wouldn't dream of wearing flipflops outside the beach.
On particularly desperate days, as I squelch through puddles on my way to school, I wonder why it is that so far, no one has come up with a rain shelter for shoes--a kind of clear plastic cover perhaps, that would fit over pretty shoes and protect them from the evils of water... All delusions aside though, how do you stay in style on rainy days?