How to take care of my Laptop?

Ok, i have a Toshiba Satellite L500D/00V. I want to take good care of it as it has to last me 5 years. I hear that they have a known history for overheating after a yeah or so.





So how do i prevent:





-Overheating (always used on flat surface)


-Bad battery wear


-Keyboard wear


-Paint wear (my last laptop has 2 black spots from where my wrists would sit)





And any other advice would be greatly appreciated!





Thanks.How to take care of my Laptop?
keep it clean area.