Colouring your hair at home

I've been colouring my hair since I was, oh, 14. My first product was a Rimmel semi permanent: they came in little glass bottles, and it was an auburn shade. Unfortunately we had a fire alarm the following day school and it was raining. Standing out in the playground the dye started to run down my face. Very embarrassing.

It didn't put me off though and I carried on happily experimenting. Toners, Harmony, Color Glo, mostly in red shades; one foray with purple (not a success) and black. Black was hideous. I looked like Morticia Adams. It made me look washed out. And I must have neglected a big piece of hair at the back because a child on the bus said loudly: "Mum why has that lady got a big brown bit of hair at the back?"

I even tried blonde, fleetingly. But I have very dark brown hair and it was pretty much a disaster. It went quite gingery so I had to do it again. It was OK, I even passed as a Swede in Sweden, but the first time I did the roots retouch, I couldn't get them beyond ginger and then tried to go back to brunette which was harder than you'd think: it went mousey, and I had to use two packets of permanent dye to get it to the right shade. Fortunately because my hair is what hairdressers call "strong," it recovered without looking too much like horse hair.

Now I colour my hair every five weeks using a dark reddish brown from Nutrisse. I have three criteria for a permanent dye: it needs to go on dry hair (I can't be doing with wetting the hair first, and then having it drip dye down my back); it needs to smell pleasant and not remind me of the awful chemicals it contains, and it needs to cover grey well.

I'm not too grey, just around the hairline. Some products are too red and make the white hairs a shade of orange, but Nutrisse blends them in perfectly. Sometimes I wonder if my hair is too dark for my age (very ageing apparently) but I tried a lighter shade of red and it went too orangey after a couple of weeks. Red is very difficult to maintain.

My tips for successful home colouring are:
1) Leave dramatic changes and highlights to the professionals.
2) Smear Vaseline around your hairline before you start, to stop the dye staining your forehead.
3) Make sure you drape plenty of old towels around the floor: darker dyes are terrible for staining. My partner loathes me colouring my hair so I do it secretly, and have to make sure there is no evidence in the bathroom (stains or marks anywhere). I usually take my rubber gloves and bathroom cleaning products with me to give the bathroom a clean while I'm waiting for it to take.
4) The applicators that come with most kits are useless for getting dye into the hairline. So I always use the tray and little brush that comes with the Nice n Easy root retouch product. I find the brush is excellent for the hairline, and I simply rinse it out each time to use again.
5) Always follow the instructions and don't wait any longer, or keep dye for later.
6) Always use a conditioner every time you wash. I find the ones designed for coloured hair are the best. I used to use those for red hair, but found they were making it too red, so I now use those aimed at brunettes. They help to prolong the depth of the colour and give a nice shine. I've tried all of them and like Pantene best. If you don't use a conditioner, and occasionally a deep conditioning product, your hair will feel very coarse and dry and won't shine at all, and then you'll have the helmet hair typical of home dyers (if that's a proper word!).
7)If you've used a shade for the first time, write down what it was. It's easy to forget which one it was when you're next in the shop.