When we moved into our condo almost 3 years ago, we thought it'd be nice to have some plants to liven up the place. Sadly, I have no green thumbs and have managed to kill all plants previously given to me. :( That's why I decided to search for plants that are hardy enough that even I could nurture and keep.
Then, I stumbled upon this TED talk "How to Grow Fresh Air". I loved the idea of growing plants that can remove formaldehydes and other toxic, volatile chemicals from the air. Specifically, the speaker Kamal Meattle grew three types of plants in his Delhi's office: Areca palm, Mother-in-Law's Tongue and Money plant. Mother-in-Law's Tongue is a wonderful bedroom plant as it converts carbon dioxide into oxygen at night. Money plant is a miracle plant that absorbs toxic, volatile chemicals; some say Mother-in-Law's Tongue does the same.
After some research, I decided to buy Mother-in-Law's Tongue (aka Snake Plant) and Peace Lily (another plant that absorb toxic chemicals). They're both readily available in my local gardening stores, and are very economical. Best of all, they're deemed to be very sturdy plants that are easy to grow! They don't require a lot of sunlight, watering or fertilizer (I haven't used a single drop of fertilizer on them).
See how they've grown in less than three years! We've had to repot a few times. :)