ok not sure if this is really worthy, its mainly just being smart.
So the other day i was selling some of my tailoring stuff and i was bored and my cousin asked me to grab him some enchanting stuff. so i looked up and som1 accidently posted 6 plasmetic shards for the price of 1. bought it and resold it for a couple gold off, and cha ching! im rich.
Next day look around AH in hopes of htis happening again, once again there was somthing i could buy and resell, som1 from a diff server aparently not used to the economy on mine put a portals of 8 up for 5g (it sells for that on some servers, on mine it sells for around 200g) and im not even used to my server's economy, got 80g for it.
so just check ur AH once or twice a day for people who make mistakes or dont do their research and u can be a rich bastard like me
+Rep plz