Bass traps - too many choices!!


Browsed the forum and read a lot regarding bass traps. But overwhelming and still not sure what to buy. Looked at the ASC site; and their tube traps are tuned to different frequencies. eBay sells foam wedges which are advertised as corner bass traps. Relatively inexpensive too. But are they effective? I've also heard about using sand-filled cardboard tubes (used for pouring concrete). Even heard that a large potted plant set in the corner can be an effective bass trap.
Can anyone simplify this? I already have Room Tunes in my corners. Speakers are on the diagonal as my listening room is kinda squarish. So I'm just looking to put a bass trap in the corner behind and between the two speakers. But I want to make sure that whatever I buy is effective. 

rockyboy
Everybody claims their acoustical product is a bass trap; It ain’t true. Room tunes is just cloth-covered fiberglass, a joke at the prices Michael asks for them. I still have some. Owens Corning 703 Semi-Rigid panels are far better for eliminating slap echo on walls. For true bass traps, ASC is the real deal. Expensive though. I found 13 of them in a local paper twenty years ago for ten bucks each, including a pair of 16"!
I've already eliminated slap echo using panels at reflection points on my walls. What I want/need is a bass trap. Just not sure what the "right" product is. I may call ASC next week and get their thoughts. Their products are pricey. That's why I might buy a cylinder from Lowes, fill it with sand, plop it in the corner and hear what it does.