Look for ways to dampen sound coming out apartment door

[Kaios]

So I live in an apartment and one day I was playing music from these small speakers in my kitchen. They weren't excessively loud or anything but you could easily hear it across the apartment. I went outside to throw some trash and I realized I could still hear my music a few doors down(with my door shut). I don't like the idea of being that noisy neighbor.

I have no experience in this, so I was wondering if you guys know if:
-There are ways that I can dampen the noise a bit that are coming out my door (I'm not expecting total soundproofing or even relatively close to it)
-And if those ways are apartment rental friendly, meaning no permanent fixtures or even screws.

Thanks in advance guys!

[Daemon White]

Towels work, if you have a few to spare.

[Pvt Anderson]

In my apartment I have a glass dome the height of my fridge and maybe 10 feet wide around that I listen to music in. It's the only way I've found that works to prevent sound from leaking out of the apartment.

[Kaios]

[QUOTE=Pvt Anderson;46533404]In my apartment I have a glass dome the height of my fridge and maybe 10 feet wide around that I listen to music in. It's the only way I've found that works to prevent sound from leaking out of the apartment.[/QUOTE]

Excellent, there's actually a glass dome store by the corner.