As pets go, cats are quite self-reliant but the matter of the litter box remains. Self-sifting litter boxes make maintenance much easier, but the ones on the market are fairly expensive. Not to worry. You can easily make your own for about $15.
Items you will need
Plastic litter trays that stack together, 4
Prints of template (2)
Print two copies of the litter tray template, available HERE. Trim to the dashed line, align pages matching circles and tape together. When finished, you should have four template pages, two copies of page 1-3, and two copies of pages 2-4.
Apply rubber cement liberally to the back of each template page, let dry and adhere inside each of the four plastic trays, keeping the trays all facing the same way and placing the template in the same position in each tray.
Using a straight edge as a guide against the template lines, make several passes with a utility knife through the paper template and into the plastic. Press hard but don't worry about cutting all the way through. Continue scoring lines until you have all solid black lines cut out from template.
Turn the tray over and cut through scored lines. The pieces should come out easily.
Peel off the remaining pieces of the paper template.
If you have any trouble removing the paper template, spray with a little WD-40. The paper will wipe right off.
Select a tray with a page 2-4 template and sit it on the cutting table. Set the finished page 1-3 cut tray inside the page 2-4 ready tray and check for alignment. There should be no solid black areas showing. If necessary, remove and adjust the template at this point.
Cut the remaining three trays following the previous procedure. Stack them inside each other alternating cut patterns. Fill with kitty litter. The litter box is now ready for use.
You might want to use a boot tray or similar tray to set under the litter box to collect stray litter bits.
Using the Self-Sifting Litter Box
Simply lift the top tray and shake back and forth to let the litter sift through the slits, leaving the disposable clumps inside the tray.
Dispose of the litter clumps in the trash.
Set the empty litter tray on the floor, lift the stack of three trays containing the litter and set it inside the first litter tray. Move the stack back onto the boot tray and you are ready for a new day!