Your usual habits, keep a lot of "fossils", rice grains, biscuit residue, hair and so on abound, no wonder some people say: the keyboard in the public computer room is dirtier than the public toilet. At the same time, such debris may enter your keyboard and block the circuit on your keyboard, thus making it difficult to input. Drinks are more harmful, and one time is enough to destroy your keyboard. Even though your keyboard is lucky not to be damaged, I'm afraid it's still sticky when you type.
Solution: avoid eating on the keyboard, or buy a waterproof Philips keyboard like me, and then wash and bathe him every once in a while (although it is still dirty); If you have more money, you can consider changing your keyboard for half a year (I never recommend using a poor keyboard, which is a health problem), and things should be better. Remember to buy a dining table for your room.
Second, the handlebars and cigarette butts
Just as cigarettes, cigars or tiny smoke particles can harm your lungs, smoke can also enter your floppy disk drive and endanger your data. Smoke may also cover the read heads of CD-ROMs and DVD drives, resulting in reading errors. Soot is likely to greatly reduce the quality of printers and scanners.
Solution: The best way to protect your system and yourself is not to smoke. If you just can't get rid of the habit of smoking, go outside and smoke or turn on the air freshener around the computer! Of course, don't use your keyboard as an ashtray.