Amazon has the travel size 3.4oz FunkAway Odor Eliminator Spray for Shoes / Clothes / Sports Gear (Non-aerosol) on sale for $3.99 - 5% off with Subscribe & Save (can cancel anytime) = $3.79 with free shipping on $25+ or with Prime. Gets rid of sweat, smoke, pet, mildew, skunk and food smells.

• Cheaper per ounce: Walmart has the 8oz bottle for $5.78.