[fouc]

I love mental rule of thumbs / heuristics that we can install into our brain to avoid getting caught up in cognitive biases or other mistakes.

An easy one that I would expect most HN readers probably do already is: When shopping, always round up to the nearest dollar before even mentally storing it or operating on it. The usual cognitive bias is that many people end up storing the listed price of $4.96 in a lossy manner, as $4.xx, and end up thinking of it as $4 when in reality they could be skipping straight to keeping it as $5 in their head.

[boogieknite]

it blows my mind when anyone ever reads $x.99 as $x out loud. i often cant keep myself from muttering "$x+1" and its taken decades of practice to keep myself from looking at them like they have 2 heads

figured it out since i learned to read so it seems so childish to hear adults make it

turns out ppl like me are the weird ones and most people just truncate at the period