Loving my (outdoor) daffodils!
As the "owner" of two cats, I sometimes get frustrated that I can't have plants in the house. Aside from the destruction factor, there's the constant worry that a plant might be poisonous. Several years ago I brought home an Easter lily, unaware of how lethal it was, and ended up panicking in the kitty ER. (Thankfully, the cats had only taken one tiny nibble before I caught them, and were fine.) After that I banned all indoor plants to avoid repeating the experience.
However! To encourage myself and other cat keepers, here's a list of common plants that are officially NOT poisonous to cats. Bring them into the house with abandon! :)
If you like unusual plants and/or know their scientific names, you can find a more complete list at the ASPCA. :)