: Vaccines are fragile; if they reach room temperature for even a short period, they become useless water. Always use an insulated cooler with ice packs.
Buying puppy vaccines yourself can save money, but it requires careful handling to ensure your pet actually gets protected. You can purchase these "DIY" kits from farm supply stores, online pet pharmacies, and local feed shops. Where to Buy Puppy Vaccines
: Many local Humane Societies host "Vaccine Days" with tiered pricing based on income.