6. Never rebooting
Closing your laptop or putting it to sleep is not the same as shutting it down. Make sure to completely turn it off at least once a week, or if you know you won’t be using it for a full 24 hours, shut it down.
7. Spilling water (and then lying about it)
If you commit the cardinal sin of spilling water, beer, or Greek yogurt on your computer, you’re going to need to take it to an expert for repairs. Now, since there are components inside that change color when they’re exposed to water, don't lie—it just slows down the diagnosis and makes you look like an asshole. In the meantime, our guys recommend turning your computer off right away, and praying to the ghost of Steve Jobs. Even if you can, don’t take the battery out, since you might risk voiding your warranty.