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We present a small, light and low-power GPS tracking device. Powered by a coin cell, the novel receiver design enables a tracking lifetime of two years with quarter-hourly position recordings. A snapshot receiver design is employed which allows for arbitrarily adjustable duty cycles. Offloading data processing into the cloud reduces the hardware complexity and the energy consumption of the receiver. Compared to conventional GPS trackers, our design minimizes the tracker's cost, size and weight, which enables new applications. Our prototype implementation weighs 1.3~grams, has a size of 23mm x 14mm and highlights an operating time of 683 days with quarter-hourly positioning when powered by a coin cell.