London, UK
I'm now positive that London has the most fickle weather of anywhere I've been.
I learned this by wearing flip flops and sunglasses out, only having to put the glasses away 3 times (in 2 hours) in exchange for an umbrella. More on that later.
I spent Friday night in doing laundry and grocery shopping. Luckily, my clothes survived the only-one-setting-of-hard-wash commercial washers, but I completely wasted 4 pounds on the dryers. I'm pretty sure my clothes ...