well i'm 5'10" so i have to have 4 packs per day... and that costs me £49 per week... OH does it too so it costs £98 per week... but so worth it cos we were spending a fortune on take-aways, shopping etc.
sometimes i only manage 3 packs and if i only bought them for 3 packs per day its something like £38 per week but i would prefer to still have the option of 4 packs per day and it means i have some left over so it can get to the point where i don't even have to go back for the next week cos i have loads left lol - which is handy when money is tight i.e waiting for pay day lol
hope this helps chick x