What is the best way to improve the insulation in an apartment?
I'm a tenant, not a homeowner, so I can't tear down drywall and reinsulate but winter is coming and drafts are already getting in. Is there anything I can do to prevent that without upsetting my landlord? The wall I'm concerned about is the only exterior wall in the apartment, it has one window and one door. And it's in my bedroom so appearance isn't that important (I'll shut the door when guests are over).