On days like today, it totally feels like summer, I just can't wait!

What kind of practical (flat) shoes would be trendy for spring/summer?

I love ballet flats, but I just hate wearing them on rainy days. I'm looking for shoes that are comfy, stylish, and can stand up to daily wear and tear.

I've also seen a lot of gladiator sandals around as well..

I would love to wear boots too all year around, but do you think they look silly when the weather get warmer?