It's always weird to me that fiction handles zombies the way they do. Zombie apocalypses would be 95% standard disaster survival challenges. Food, water, shelter, power, medicine. Even if zombies were decomposition-proof, some improvised bite-proof armor would solve 90% of the zombie problem. Canvas and some duct-tape would be crude but effective. After that it'd just be tedious zombie cleanup time assuming you didnt die of starvation or dysentery.