Let’s be honest: When you first started working from home, your “office” was probably a shaky card table and a chair that had a personal vendetta against your lower back.

Maybe you’ve upgraded, maybe you haven’t. Either way, we’re all acutely aware that small irritations add up to big productivity sinks. But you don’t need to drop a grand on an Aeron chair or a 49-inch curved monitor to make your workspace feel like a place where actual, focused work gets done.

Sometimes it’s the little things that punch way above their weight without ransacking your wallet. Here are seven simple, sub-$40 upgrades that can genuinely transform your day.

USB-powered mug warmer

Average price: $15-$25

You make a perfect cup of coffee, get into a deep-work flow, and a half-hour later, you’re looking at a l

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