Honestly, you can rub all sorts of greasy foodstuff into your hair and they're going to be more expensive, less fragrant and harder to wash out than a store bought conditioner.

Dandruff is tricky because it can be caused by more than one thing. What you think is dandruff may be dry scalp—you can tell the difference because the skin on your head feel itchy and flakes are small and dry, not big or greasy. If you've always used shampoo and conditioner for oily hair, or have avoided conditioner completely because you think your hair is oily, you may be overstripping your scalp and making it dry. Try switching to a normal hair or even dry hair shampoo and see if the problem rights itself.

Oily hair can be a real drag! First of all, shampoo it every day to reduce the oil. Use a shampoo for oily hair, but if your scalp starts to get itchy or scaly, switch to a normal hair shampoo. If you can avoid conditioner, do so: even the oily hair conditioners add things you probably don't need. If your hair is short and you don't need the detangling properties of conditioner, just skip it entirely. Avoid also any hair products like gels and mousses, which contain ingredients that weigh hair down.

The easiest, if more expensive way to get rid of facial hair is to get an appointment at a laser hair removal clinic and have it zapped away about every six weeks, until the follicles give up and the hair either goes away completely or comes back so fine that it's not worth bothering with. Lasers have the fantastic ability to vaporize hair without messing up the skin around it, although they do work best on people with fair skin and dark hair.

Coconut oil has long been used in India and the South Seas for keeping hair soft and shiny. It has the added benefit of a lovely natural scent, that can remind you of Hawaii without the added expense of plane tickets. You can also use sesame or olive oil to massage the head and hair.