Not the type with artificial lighting and extra insulation in the loft! We've had a summer of fantastic fresh herbs thanks to the gumtree greenhouse, but of late they have gone all stemmy, spotty and generally sick. Its been a bargain compared to buying for recipes but now I've got in the habit of using loads, any tips for keeping them indoors? Previous experience has been of supermarket pots quickly dying - we are mean and don't have the heating on much, is this austerity incompatible with winter herbs?