Borrowed some of a friend's bass traps (a pair of small corner ones and a pair longish wideband panels). Placed them all at the front of the room.
Helps with the sound so much (especially with bass. duh) that I really am kicking myself for selling my previous bass traps and for so cheap (sold them thinking I was not going to use the room for music anymore, but things have changed!)
So plan to build some panels and corner traps.
Was thinking of following something like this for the corners.
http://www.radford.edu/~shelm/acoustics/bass-traps.htmlWill do a few flat panels too.
Any advice from guys who have done this stuff already?