For a quick good time, blankets...

erik, if you have the speakers on hardwood or tile floors, any kind of sound absorption in front and between them on the floor is an absolute requirement. Also, depending on the speaker type, some absorption (or defraction) on the ceilings between/front the speakers will improve the SQ. This is all about removing unwanted floor/ceiling reflections and having them mixed with the direct sound from the speakers as they reach our ears at different times, etc. But you probably knew all this already.

Those of you who cover all your walls with blankets are either single or looking for an excuse to become single....

Hey Wolf, what's this extreme affinity to sheep..? You heard the story about the shepard who got real lonely on a cold winter night, soft music played and....remembering any fond memories??!!

I think the most overlooked "room treatment " is the area front/between the speakers on the ceiling. Try the blanket treatment, especially if they are standard height, e.g. 8', etc., and near field listening arrangement. Helped my room to sound a tad warmer.

Legs on the coffee table and apart and directed to each speaker, wool thick socks with the toes at ear level and slightly bent inwards to guide the sound waves to the respective ear. Avoid holding glass mugs as they will make the room too bright.