One thing to keep in mind is that the battery (on laptops) will degrade if you leave your computer plugged in all the time. I have unplugged one of my laptops maybe 15 times in 2 years, and the battery lasts about 5 minutes. Just keep this in mind, because batteries are expensive. If you use your laptop as a desktop computer, as in you don't take it anywhere, I would remove the battery and then plug it in when you want to take it somewhere. This won't make an impact if its only a few days, I just don't have any powerful desktop computers so I use laptops.
Also, I personally have never had hardware go bad on me. Most hardware is built to withstand the lifecyle of your computer. I guess I could recommend not shaking violently, and avoid spilling stuff on your computer. Also, powering on and off constantly is bad practice, but I don't know anyone that does that.