Lachlan
En-Route
I needed a new litterbox for my cat of unusual size, but new top-entry litterboxes were $30 on amazon. As it turns out, a 14 gallon rubbermaid roughneck does the job just fine if you slice the lid in half with an xacto, for $10 at my local hardware store.
You could have saved 10 bucks by sending the cat outside. No cat = more money.