Lisp In Small Pieces, page 21: you don't need to capture any state for anonymous functions with dynamic scope!
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Unicode 12.0 has Egyptian hieroglyph formatting, exotic chess pieces, and a bunch of new emoji! https://blog.unicode.org/2019/03/announcing-unicode-standard-version-120.html
Flux is an app for digitising receipts and business loyalty cards: https://www.tryflux.com/
These are both pieces of paper you often need to keep around. Receipts are particularly something you might need if you're expecting to need the warranty. Could be convenient.
Chess is beaten (machines can play a perfect game) when there are up to 7 pieces on the board.
This might seem like a simple question of compute power, but clever implementation matters. If you can effectively compress your DB, you can use a bigger one!

