I had one year in particular where I was both cycling to work every day (10km round trip) and cycling to school 2-3x a week (50km round trip). I lost ~30lb in about six months. In fact, as I wasn't trying to lose weight, I didn't even realize I'd been losing so much weight for a few months, and mentally doing that wasn't hard at all - just felt like a normal routine (certainly helped that cycling was often my fastest way to get to both work and school, and almost always a close second).
I had one year in particular where I was both cycling to work every day (10km round trip) and cycling to school 2-3x a week (50km round trip). I lost ~30lb in about six months. In fact, as I wasn't trying to lose weight, I didn't even realize I'd been losing so much weight for a few months, and mentally doing that wasn't hard at all - just felt like a normal routine (certainly helped that cycling was often my fastest way to get to both work and school, and almost always a close second).