Amazon has the Simply Filters 20x20x1" MERV 8 Air Filter 6-Pack (MF202016) for $30 with free shipping on $35+ or with Prime. Features actual Size: 19.75" x 19.75" x 0.75". comparable to 3M Filtrete MPR 600, Filterbuy AFB Silver, and Honeywell FPR 5.". Our filters capture dust, mold, pet dander, and pollen in homes, offices, schools, hospitals, and commercial spaces, trapping 90% of airborne particles, promoting a healthier living environment with clean and fresh indoor air.

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Amazon has the 36-count Sharpie Fine Tip Permanent Markers (Black) for $14.22 - 5% off via Subscribe & Save = $14 with free shipping on $35+ or with Prime. Features permanent ink marks on paper, plastic, metal, and most other surfaces, dries quickly and resists fading and water; AP certified.

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Amazon has the 10-Pack Eneloop Panasonic AAA 2100 Ni-MH Rechargeable Batteries (BK-4MCCA10FA) for $19 with free shipping on $35+ or with Prime Features rechargeable batteries up to 2100 times, can be used in remote controls, flashlights, toys, wireless computer devices, rc cars, digital camera flash units, game controllers and more.

Has excellent Amazon Reviews.

Amazon has the rOtring 600 Medium Point Refillable Ballpoint Pen (Black) for $18 with free shipping for Prime members or on $35+. Has excellent Amazon Reviews.

Amazon has the 90oz Oxbow Animal Health Oxbow Hay Blends (Western Timothy & Orchard) for $13 - 5% off with Subscribe & Save = $12 with free shipping for Prime members or on $35+. Has excellent Amazon Reviews.