It depends on the ink and tip style you’re using. Here’s a simple guide you can adapt:

• Dual-tip alcohol or brush markers: Storing horizontal can help keep ink balanced between both tips.
• Single-tip permanent or dry-erase markers: Vertical, tip-down can help keep the nib charged; many also do fine stored horizontal.
• Paint, chalk, or wet-erase markers: Manufacturers vary. When labels don’t specify, vertical, cap-up or horizontal storage can help reduce potential valve flooding.
• All markers: Cap tightly, avoid heat and direct sun, and keep in a cool, dry spot.

Packaging instructions take priority, since formulations differ. Trying one marker first can help you pick the best orientation for your set.

Unopened shelf life can vary by brand, storage conditions, and when the markers were manufactured. There isn’t a single timeframe that fits all, but these tips can help extend unused life:

• Keep seals intact: Store in original packaging until you’re ready to use them.
• Control the environment: A cool, dry place away from heat or freezing temperatures can help preserve ink.
• Rotate stock: Use older packs first and check for date codes if provided.
• Test on first use: If performance seems light, recap and rest horizontally before trying again; results can vary.

If something arrives dried out, you can check your Walmart order history to see available return or exchange options within the posted window.

Tip orientation can influence how ready a marker is when you grab it next time. Consider this by marker type:

• Felt-tip, single-end (permanent/dry-erase): Tip-down storage can help keep the nib inked for faster starts.
• Dual-tip alcohol/brush markers: Horizontal storage can help distribute ink to both ends more evenly.
• Paint, chalk, and wet-erase markers: Some users prefer cap-up to help reduce potential valve flooding; others store horizontal. Follow the label if specified.

Always recap fully and avoid hot or sunny spots. Small tests with a few markers can help you choose the orientation that works best for your setup.

Set up a simple system that protects your markers and makes colors easy to find:

• Sort by type and surface: Keep permanent, paint, chalk/wet-erase, and washable markers in separate compartments.
• Color-code: Group by color family for faster projects.
• Use cases or caddies: Zipper cases with loops, divided caddies, or drawer inserts help maintain orientation and quick access.
• Protect from heat/sun: Store away from windows and heaters to help preserve ink.
• Label bins: A simple label (e.g., “glass,” “wood,” “paper”) speeds up selection.

Shopping online at Walmart, you can browse storage pouches, desk organizers, and bins, then choose pickup or delivery options that fit your schedule.

Different surfaces benefit from different marker types. Here’s a quick guide to help you choose:

• Glass and windows: Chalk or wet-erase markers are popular for non-porous surfaces and easy cleanup. Always test on a small area.
• Wood and rock: Acrylic paint markers adhere well to many porous surfaces; sealing after drying can help durability.
• Metal, plastic, and stone: Permanent markers can provide bold, long-lasting marks; test first if removability is a concern.
• Paper and coloring: Washable or alcohol markers offer different looks; use the right paper to reduce bleed-through.

Formulations vary, so a quick spot test is a good idea before a larger project.