Leftover bread going stale too fast in my humid kitchen—best budget-friendly storage fix?

I live in a pretty humid climate, and I’ve noticed that my leftover bread turns stale and moldy within just two days if I leave it out on the counter. I usually buy a loaf every couple of days since I’m trying to avoid waste, but this rapid spoilage is annoying and makes me feel like I’m throwing money away. I’ve tried keeping it in a plastic bag and even wrapped in a tea towel, but neither really slows down the staleness or mold growth. I don’t have space for a bread box, and buying fancy bread storage containers feels like an unnecessary expense right now. Has anyone successfully kept bread fresh longer in humid conditions without spending much? What’s the cheapest and most effective way to store bread so it lasts a few days without turning into a rock or getting moldy? Would freezing slices be worth the trouble if I only eat a little each day?