[Histonet] Rnase free slides?

[Caroline Bass]

Hello,

I'm doing RNA work for the first time. My plan is to take a fresh rat brain,
block quickly, freeze by immersing in dry-ice cooled isopentane, storing at
-80, collecting tissue sections (thickness will be determined, somewhere
between 20 and 300 um), and punching the particular regions I need out of
the sections. I will then isolate RNA from the punches for qPCR analysis.

Questions: 

1) does this sound like a viable plan?
2) and suggestions, what to be careful of?
3) where do I have to be careful of Rnase, should I use disposable blades,
cleaned with Rnase away?
4) where can I find Rnase free slides, or should I just make my own. I
usually use charged slides.

Any and all suggestions will be appreciated. I'm new to this and don't know
where I will have problems.

Thanks!

Caroline