must have: Heat protectant

I'm sure most of you already know (if not everyone) how important is to protect your hair with a heat protectant. Here's my favorite one that I use every other day (because that's when I wash my hair):

Things I like about it:

• This one is great because you can use it when you're going to blow dry your hair, straighten it, cur it...It works for tools that heat up to 230ºC / 446F. 
• It has UV filter.
• It has a lock on top so it doesn't spray out if you're carrying it in a suitcase, and it prevents spray accidents.
• Great amount of product: 300 mL
• it's not pricey: it cost me 7.80€ at El Corte Inglés (where I usually buy it) but I've seen it at 6€ at some other places.

How I use it:

• If i'm going to blow dry my hair first: I spray it when my hair is towel wet and then I blow dry it right after. 
• If i'm going to straighten it: I spray it when my hair is towel wet, let it air dry, and then use the flat iron. I know some people spray it on dry hair but that makes my hair greasy, so if your hair is naturally greasy, i wouldn't recommend to do that.
• If i'm going to curl my hair: I always straighten my hair before I curl it, so I'd do what I said before and then, the morning after, i'd spray just a little to the tips of my hair (cause i don't want my hair to look greasy) and then, curl it.

tip for greasy hair: don't spray it on your roots.