One of my favorite things to do when I'm stressed is to go outside and breathe some fresh air!
Being inside all day makes me feel like I'm stuck, so just stepping outside and taking a deep breath instantly calms me down.
Recently, I bought a bike with my boyfriend and we try and go ride on the trail by my apartment as much as our schedule allows! It's not really a rigorous trail, so it's enough of workout, without leaving me feeling drained.
My advice to all of you who own a bike (especially if it's stored away collecting dust), is to go out and ride! Even if it's just for 20 minutes. I would avoid going on streets and stick to a trail though, if you get stressed about getting hit by a car (which I definitely do).
Anyways it's always nice to get out and enjoy the beautiful earth we live in, so spend some time in nature today :)