How to keep my lady bits smelling fresh??

I'm a thick girl. My thighs are constantly touching and it's always hot in my vagina reaction because of that... I notice that as the day goes on my vagina starts to smell a little sweatey and stuff.. it's bugs me, and it makes me nervous for when I might be having spontaneously unplanned sex. Nothing worse than having a guy go down on you knowing you might not be fresh. Just looking for some advice.