Did a quick search and didn't see these anywhere. . .
My TRU has a neverending crap bin by the register. Newly added this week were Soul Calibur II for the PS2 for $5.98 (non GH version) and Mafia for the Xbox for $11.98. They also had one copy of Chaos Legion for $9.98.
Golden Sun 2, sealed, I paid $5 for it at Target so I will trade it for any half way decent $5 game I don't have. I have too much to list, but I have all systems if anyone wants to make an offer.
Not too big a deal, but the Dollar Tree chain of dollar stores around here have various GBC and GBA accessories, such as rechargable power packs, screen lights, magnifier/light combos, etc. They also have six foot extension cables for the PS1/PS2.