Room treatments without $$$

Tapestrys, quilts, etc on the wall at 1st reflection points (on sides) Pillows in the upper corners. For cheap bass traps, stack a couple of boxes in the corners, fill up with newpaper about 1/2 way in each box. There are several do it yourself idea's on other sites. email me and I'll point you there.

There may be something in the archives here as well.

Quilts and rugs hung on the walls at the first reflection points are a cheap and easy was to begin treating the room.
Have someone sit in the primary listening location, take a mirror to the side walls opposite each speaker and move it until the seated person can see the speaker reflected in the mirror. These are your first reflection points. Start from there.

Use the ideas from above, then go to Guitar Center and buy Auralex panels - 2 x 4 - $18, corner bass traps, $25 - ask for a discount. If they were marketed by / for audiophools, they'd cost 10x more $. Available in a lot of colors too - go to Auralex.com.