totally tube turmoil

I have had a run of bad luck with glass cuts, staples, rim tape slippage. My tubes are taking a beating and have too many patches and had to toss too many tubes. They are getting expensive just due to quantity.  The tires are in good shape (now) because some tube holes were from rim tape not seated (since fixed) and I have replaced the tires when the side walls where cut. 

I have heard rumors that there are deals to be had on tubes and when they go on sale for $1 or $2 each and folks are stocking up.  Where have they found these great deals on tubes?  I have looked at ProBikeKit and Google'd cheap tubes but have found too few bike related items.

This request will either turn up a supply of tubes cheap or somehow change my fortune and I will start avoiding the hazards on the road.  One way or another a guy can dream.

So has anyone found the un-hole-y grail of tubes?  Anywhere that does mail order if good for me.