The prep window ยท The Day Before Disaster
Ten hours and a budget. Where do I go, and what do I buy?
The countdown before the outbreak. Every hour and every dollar is spent once, and what comes home is the run you will live off for weeks.
Every guide here is checked against the 9/2 Update (version 1.0.15511).
Start with this one
It answers the question the rest of the stage builds on.
The ten-hour prep window: where to go and what to buy What should I do with the ten hours before the outbreak? The decisions, in the order the run poses them
Each one gives a default choice, the reason, when it holds, what it costs and what to do instead.
Feeding one person: what to buy and what to carry Which food should I buy, and how much of it? 
What you are really buying: every shelf, discount and delivery Which shop should I buy from, and what am I really getting for the money? 
What counts as prepared: the targets the game sets How much do I need before the outbreak? 
Carry weight against bag cells: which limit stops you first Which runs out first when I pack, the weight or the cells? How it works
The rules and formulas behind those decisions, with worked examples, and how to use the lists.
Look it up
The lists a player at this stage keeps open. Each one works on its own, without reading anything.
Locations 
Supplies 
Equipment