Laziness is owning me...help!

It's a non-working holiday today and tomorrow. The final exams are all done and now it's time for the most dreaded thing by teachers like me: check loads of papers and compute grades. How can I do this on time? I don't wanna be fined again for being late in submitting the grades. BUT how can I do this when laziness is taking over me right now? Deadline is on Tuesday but I haven't started checking any of those papers and laboratory activities. I'm blaming this on the weather that's sooooo sooooooooooooo hot causing me to loose lots of water by sweating and weakening my bones...lol...whatever! Somebody help me...take me out of this laziness please...