As a homeowner whose kitchen is smaller than those of some apartments, I understand the value of making the most of limited counter and cabinet space. This Seville Classics shelf/riser is quite helpful in that regard, with its its generous 5.7" height — perfect for storage above and below — and the ability to expand from 15 ¾" to 30" wide. It won't collapse under stress thanks to its solid iron construction, and the shiny finish lends a bit of modern style.

Get it for $17 on Amazon.