>>A couple of things I'm reading
>>
>>Writing Faster Managed Code: Know What Things Cost : http://msdn.microsoft.com/en-us/library/ms973852.aspx
>>
>>Writing High-Performance Managed Applications : A Primer : http://msdn.microsoft.com/en-us/library/ms973858.aspx
>>
>>Chapter 5 - Improving Managed Code Performance : http://msdn2.microsoft.com/en-us/library/ms998547.aspx
>
>I'll check them a bit later, thanks again.

You'll have to read them a couple of times (I had and I still do)
I'm investing time to learn good habits

The first link shows that eg

int i = 78799;

i /= 2;  // slower

i >>= 1; // faster