What are some of your favorite "life hacks"?

I have two that totally changed my play!

--No more simventory clutter: anything that says it can't be sold or deleted, can at least be cleared out by turning on multiselect then selling. Those items sell for $0, but at least they're gone!

--The Attic Stack Decoration Box from Seasons is literally infinite money, just rummage for seasonal decorations until your Sim won't keep going then sell everything! Those decorations can range from $20 (Assorted Cards Holiday Display) to upwards of $500 (Cock's Crow Table Accent, technically $435 I think), and you can keep anything you actually want to use. I've generated thousands of Simoleons from using the infinite decoration box, and it's actually a really good emergency backup if the bills come in at a bad time.

Have any fun tips to share that can help your gameplay? I'd love to hear them!