Protect your laptop
There are several common failure items on your laptop.
One is your power plug. The part that is in the laptop. It is only soldered in general. Treat it gently. The solder joints break and you cannot charge the batteries anymore. Some times it will crack the motherboard which means your computer is unusable. Sometimes the cost of the motherboard and labor exceeds the cost of a new computer. The worst part is the data on the hard drive has to be retrieved. To avoid this your data should be backed up anyway.
Broken screens are also very common. The same issue of replacement screen and labor is more than a new computer. Laptops are mostly plastic. Be gentle with them.
Carry it in a padded case of good quality in case it gets bumped.
If you are using your laptop on a flat surface for long periods of time raise the rear of the laptop so the fan can exhaust the heat from the processor. The vent are generally at the back end of the laptop. The computer will shut itself of if it gets too hot anyway. In the long term heat is an enemy of electronics.