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LPT: Before you throw away a post-it, run it between the keys on your keyboard to collect crumbs and fluff(r/LifeProTips)
LPT: Buy a mechanical keyboard. You can remove the keys tops to clean it, and the keys themselves have 10x the amount of keystroke lifetime. Your fingers will also thank you 😛
Budget, standard, enthusiast. <– Examples
/r/keyboards