How often do YOU clean your make up brushes?

Are you guilty? Are you guilty for not washing your make up brushes on a regular basis? How often do YOU clean your brushes? Yes, this is the question of the week (I haven't done a qotw for a while, I know... but this topic is BACK heheh). I know that many of you are just lazy (including me) to clean it on a regular basis. It doesn't even take much time to clean it, but we are always in a hurry in the morning and don't wash it after we use it. (Ok, When I say "we" i'm not talking about everyone here, since I know that some of you do clean it every day. I'm talking about the lazy ones..)

My answer: I clean it once a week. I tend to use a new brush every time when the used brush is dirty. That's why I have so many make up brushes at home =.=". I will just wait until all brushes of mine are dirty lol. I'm just way too lazy to clean them after usage. So yes... I'm guilty for not cleaning it on a regular basis =(.

Dirty! 
It's not hygienic to use the same brush for the whole week or even longer than a week girls. Bacterias will go in and stay on the make up brush and this can cause pimples or acne! So make sure to clean your brushes more often ;)!!

But tell me girls... how often do you clean your make up brushes?