Used to frequent a dollar store that I could swear was a money laundering front. Around 2001 to 2003 and you could buy CFLs, energy drinks, Beta Fish in a glass bowl, dishes/silverware sets, greeting cards, fabric flowers, every imaginable AV connector or cable (HDMI, RCA, S-Video, Toslink, etc.), as well as a ton of ethnic foods from SEA, laser pointers, kids toys (squirt guns/yo-yos), etc.
They had some of the super cheap stuff you see in the dollar stores around today, but I would say easily half the store or more should have been in the $3-$5 range, and some stuff a lot more. Hell, they had TDK minidisc 2 packs for $1 and boxes of CDRs (10 or 15 pack maybe).