Hey, Martyna here.(: Everybody dreams of having white teeth. Including me, but we ALL have 
some yellow in our teeth, even if you can't see it, you still have some.
 I am trying to reach my goal to get 'Super White Teeth'. So here are a 
few tips that I know, and that I'm using which are helping me.(: Enjoy, 
and comment. I might not be right, but these tips really do work for me 
and others.
1.Brush Your Teeth at Least Twice a Day
Now, we all know that we have to brush our teeth at LEAST twice a day. I
 brush my teeth three times a day, I also brush my teeth if I've eaten 
something which stains(curry, tomato sauce pasta, coffee etc.). So 
brushing your teeth is a MUST. I have been told that brushing three 
times a day is too much, but I stick to what I think is right, because 
I'd hate to stain my teeth or getting spinach stuck in between etc.
2.Price

Everyone
 thinks that the higher the price, the better the quality. Let me just 
tell you that this is NO way is true. I have normal toothpaste that cost
 me about £3.00 in Boots. I know friends that use special Colgate 
Whitening Toothpaste but... no. Just no. You don't need whitening 
toothpaste, you actually WON'T see much of a difference.
 
3.Flossing
Right, I'm not going to lie, but you like sort of need to floss. Now, I 
don't floss, and my teeth are like all right next to eachother. That 
probably means I have a bit of bacteria between my teeth, but everyone 
does, so yeah. Anyway, you don't really HAVE to floss, but it'd be good 
if you flossed at least once in 2 months. To be honest, I've used floss 
before and it didn't make much difference, but it might to you. I don't 
know :/
4. Mouthwash
You like HAVE to use mouthwash after brushing your teeth, to be sure 
that you get rid of the bacteria that isn't easy to get rid of with only
 a toothbrush. Also, this helps give you fresh breath and helps you feel
 good whilst the night progresses. If you don't have Listerine Mouthwash
 or any other mouthwash, just go and buy some at the shops for a cheap 
price. But make sure you like the flavour, otherwise there'll be no 
point in gettig a mouthwash with a horrible flavour.
5.General Tips
Obviously, avoid smoking, too much alcohole and ingridients which stain/damage your teeth.
6.Very Quick Banana Tutorial
This is an amazing banana whitening tip, just read the following, all you will need is a banana:
1.
  Brush your teeth as usual with a natural toothpaste or you can use the
  banana peel first and then brush. Use a ripe banana as it has the most
  potassium content in it. Peel from the bottom end as this is how 
monkeys  peel their bananas and it will keep you from having all those 
loose  threads.
2. Take a piece of the inside of the banana peel and gently  rub around 
on your teeth for about 2 minutes. The amazing minerals in  the peel 
like potassium, magnesium and manganese absorb into your teeth  and 
whiten them.
3. Repeat the same procedure at night or before  bedtime, to whiten 
teeth.Do this twice daily. Leaving the banana peel on longer is optional  if you have stains
 that need to come off. 
There are way more tips I could give you, but until next time, bye! And remember to keep your teeth clean! :)
Xoxo Martyna :)