Use a dish drain from the dollar store to organize plastic lids. Use a dish drainer to organize pot lids, or Tupperware lids in a cabinet. You can find them in all sizes now, to fit almost any cabinet, and they are super cheap at the dollar store!
27 Space-Saving Tricks and Techniques for Tiny Houses - Page 2 of 3
Use Ikea Knuff magazine files as under sink storage holders. Screw a magazine file holder to the inside of kitchen cupboards. Add space to store more bulky items like chopping boards, cleaning products etc.
FINALLY - a use for all of those toilet paper rolls that Dave keeps. Recycle Toilet Paper Rolls For Organizing DIY if you are in a financial pinch or just want to be crafty. perhaps wrap in some stiff paper for more support