Everything below sits under $100 at typical 2026 street prices and changes something you feel every working day. The order is deliberate — the first three fix posture and eye strain, which is where the real return is; the rest are comfort and output quality.
The stand your monitor came with almost certainly cannot raise it to eye level, which is why your neck hurts by 3pm. A gas-spring VESA arm fixes height, depth and tilt in one purchase, and clears the desk space underneath. Check three numbers before buying: the VESA pattern (75×75 or 100×100), the supported weight range, and the clamp's maximum desk thickness. Gas-spring arms have a minimum load too — put a 3 kg monitor on an arm rated 6–15 kg and it will drift upward on its own.
A screen bar clips to the top bezel and lights your desk without bouncing glare back into the panel, which a desk lamp behind you will do. The specs worth reading are CRI (look for 90 or above so colours are not muddy) and adjustable colour temperature, ideally 2700K to 6500K so you can drop to warm light in the evening. Asymmetric optics are the whole point — a cheap bar that spills light onto the screen defeats the purpose.
If you work on a laptop, the screen and keyboard cannot both be in the right place; a stand plus an external keyboard resolves that. Aluminium stands conduct heat away from the chassis, which matters on a laptop that throttles under sustained load. For a desk, a fixed-height stand is more stable than a folding one; keep folding designs for travel.
Under $100 you can get a hot-swappable 75 percent board with PBT keycaps, which means you can change switches later without soldering. Switch choice is the real decision: linear (Red-style) for quiet and smooth, tactile (Brown-style) for a bump you can feel, clicky (Blue-style) only if you never take calls. Gasket-mounted boards sound noticeably better than tray-mount at the same price. Wired boards avoid the whole battery question and cost less.
Your laptop mic picks up the whole room. A cardioid USB mic on a small stand, positioned about 15–20 cm from your mouth and slightly off-axis, removes most of the plosives and room echo people complain about. If your room is untreated and echoey, a dynamic mic rejects more of it than a condenser; if your room is quiet and carpeted, a condenser sounds richer. Either way, headphones instead of speakers eliminates the echo the other side hears.
The cheap unpowered hubs are where flaky peripherals come from. Look for one with its own power input if you are driving a monitor, and check the pass-through wattage — 65 W or better if it also charges your laptop. Verify the HDMI or DisplayPort spec actually supports your resolution and refresh rate; plenty of hubs top out at 4K/30Hz, which looks visibly laggy on a desktop.
Prices are typical street prices and move constantly; the Amazon links above are affiliate links.