You drink from a reusable bottle. You recycle. You even compost. But yet you still use standard highlighters? Make the switch to these Eco Highligther Pencils ($9). Available in all your favorite highlighter colors — yellow, green, orange, pink, and blue — they contain no plastics, ink solvents, or volatile organic compounds, and can be sharpened using a jumbo sharpener. Oh, and they won't bleed through the page — something that few traditional highlighters can claim.