Bed tonneau covers

I've been using this TriFecta folding cover on my 2010 Silverado and 2010 KZ Durango 5ver. It keeps the bed area dry and contents "out of sight", though a box cutter is all it would take to defeat the little security it provides. Operationally it's worked well - I just fold it forward when towing, and if it needs to be removed altogether that takes five minutes and requires no tools. I see them priced at about $300 locally.

http://www.extangfactoryoutlet.com/Extang-Trifecta/edp_no=1274878/shop.axd/ProductDetails?GTSE=goog&GTKW=Extang+Trifecta