it's not a trick... I am cheap.. plain and simple..can you share your trick? lol...I could totally use that kind of deal right now
I have reused soil from my 2011 grow.. 2012 grow (composted over winter) I get the cheap soil from lowes (about 4$ per 2 c ft) 2012 used about 4 new bags of soil added amendments.
before I purchase anything.. I try to resolve how I can do what I wanted to w.o paying..
I have smoked stuff grown in Fox farms dirt and other stuff I cant taste the dif..
this is what was used from lowes.com
http://www.lowes.com/pd_51527-11628-3202_4294707958__?productId=3034459&Ns=p_product_qty_sales_dollar|1&pl=1¤tURL=?Ns=p_product_qty_sales_dollar|1&facetInfo=
see now it's more then 4$.. last nov wen I purchased it it was about 3.97 per bag