You can add 25 points to your Recycle Bank account by logging in, clicking on the "Live Green" tab then following the prompts to take a short quiz about green living. This only took me a couple of minutes.
Right now there is also a $3 coupon good on any Kashi product that you can get for only 50 points. You can find the coupon by clicking on "Get Rewards" then "Grocery & Food". I often see the Kashi cereal on sale for $2.50, so you should be able to score free cereal with this coupon.
Thanks Capitally Frugal!