Here is a nice Amazon deal for you. This MHHA 2-Tier Sliding Under Sink Organizer is on sale for $13.99 (reg. $14.86), plus right now there is a 30% coupon on the item page. That makes the final price just $9.79. Here is the link to learn more and/or pick one up:
MHHA 2-Tier Sliding Under Sink Organizer – only $9.79 with sale and coupon!