(well, apart from "Never get into bulk buying while living in University accommodation and your boyfriend is the one with the ideas about bulk buying but he also expects you to keep the plastic sack of brown lentils which leaks under the sink in your student room" but several aspects of that you already covered)

Do not under any circumstances take any of the hints included in Jocasta Innes The Paupers' Cookbook (sample nastiness: "I use the cheapest vegetable oil I can find, sold in 7-gallon drums, for cooking and salad dressing. To give olive oil flavour, pack a jar with black olives and fill with oil - keep for making vinaigrette"). In case you find a copy in a charity shop for 10p or less (more if it's a charity you really like) do buy it a) to keep it out of the hands of the inexperienced and naive; and b) because the later sections on "programmed eating" can keep an entire storm-bound household (or crew) enthralled if brought to dramatic life through the medium of charades or interpretative dance.