By Danielle Kate Wroe Truthfully, when was the last time you deep cleaned your washing machine? It cleans your clothes and makes them smell and look fresh again, but did you know that if you don’t take care of the appliance that’s doing all this hard work, it could end up seriously grim? According to Good Housekeeping, every three to six months, you should be treating your washer to a good clean, as otherwise, your clothes could end up smelling damp. Not just that, the appliance could be riddled with grime, mould, mildew or old soap, and as a result, it could let off a disgusting rotten egg sm…