We Built 7 Free Prepper Tools (Because Spreadsheets Suck) Look, I’ve spent way too many nights hunched over Excel trying to calculate whether my bug-out bag will actually break my back, or if I’ve bought enough rice to feed my family for three months without turning into carb zombies. Spreadsheets are great if you’re an accountant. For the rest of us trying to prep without losing our minds? They’re torture. So we did something about it. Over the past few months, we’