Article: Many desks and chairs are built for some average height person, so they might not fit you too well. Choose an office or task chair which fits you. It should, ideally, adjust low enough for your feet to rest flat on the floor. Also, check the depth of the chair. Your knees should fold over the edge while your back is supported. Armrests and lumbar support should, likewise, be able to be adjusted so they suit your height. Adjust the height of your office chair to a height which fits you. Make sure your feet rest comfortably on the floor when you're seated. If they don't, or if you must raise your seat to match too high a desk, place a footstool under your feet, or improvise another object, such as a ream of paper, box, or old book. Adjust the height of your desk, bench, or other work surfaces. If the work surface is not adjustable, as in the case of most kitchen counters, you could either choose a lower work surface (such as the kitchen table) or raise yourself. An aerobic exercise step is a good, sturdy place to stand, with the option to adjust the height. Adjust the height of your monitor or screen. Your eyes should be level with the top, or about three-quarters of the way up. Many modern screens have a height adjustment built in. Otherwise, look into getting a monitor arm or wall-mount. Get and use a keyboard tray, if necessary, to lower your keyboard and put it at an angle which keeps your wrists straight and relaxed. Try a smaller keyboard and mouse, if your hands are smaller. They may be sold as "portable" or "travel" devices. Choose lower shelves for the items you use most often. Try a long-handled tool for tasks such as cleaning high places, hanging holiday lights, and changing light bulbs. Get a sturdy stepstool or ladder appropriate for the task. Keep it handy and place it on a solid, level surface. Never climb on improvised items, on shelves, or on chairs with swivels or wheels.
Question: What is a summary of what this article is about?
Check the ergonomics of your favorite places to work or study. Store frequently used items where you can see and reach them. Reach lightweight objects overhead with a grabber, hook, or tongs. Climb safely.

1USgal (3.8L) of Waterlox will cover 500 sq ft per coat. 1qt (0.95L) will cover 125 sq ft per coat. You can use Waterlox's online "Purchase Assistant" to help you determine how much finish to buy: https://www.waterlox.com/support/purchase-assistant. Typically, you'll need 2 basecoats and 1 topcoat. This means that for a 500 sq ft area, you would need 2USgal (7.6L) of Waterlox Original Sealer/Finish and 1USgal (3.8L) of whatever topcoat you choose. You may need more coats for very porous, untreated, or recently sanded wood surfaces. Waterlox is a potentially harmful chemical solution, so you must always protect yourself against its effects during use. Wear safety goggles and gloves whenever you are handling this product. Nitrile gloves work best for this purpose. Ventilation is crucial when using Waterlox. If you are unable to ventilate the area properly, you should not use this product. Cross-ventilation is best to aerate the room and to help the finish dry. For best results, place a box fan in a window or door with another window or door open on the opposite side of the room. You should ventilate the room while you are applying the finish and while it is drying between coats. Continue ventilating the area for at least 7 days after applying the final coat to ensure the finish is properly dried and to help evacuate the solvent odor. It is imperative that you vacuum the surface you want to finish completely before applying the Waterlox. This will remove any dust or debris left on the surface so that it doesn't get painted over. Consider using a shop-vac or a canister-style vacuum for best results on larger surface areas. For smaller surfaces, use a damp microfiber cloth to remove any dust particles. After vacuuming, wipe the surface with a dry rag to get up any remaining flecks or fibers that the vacuum may have missed. Wrap your sand block with 220-grit sandpaper and rub it across the surface of the wood in 2ft (0.61m) to 3ft (0.91m) sections. Be sure to go with the grain of the wood as you sand it. Do not sand the wood too roughly or this could remove any existing protective stain. When finished sanding, wipe the surface with a rag to remove any leftover debris from the sanding process.
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One-sentence summary --
Buy enough Waterlox to get the job done. Purchase safety goggles and gloves. Ventilate the area properly. Vacuum or dust the surface thoroughly. Lightly sand the wood surface.