Think about where you'll be placing the jar candle and how long you want it to burn. Larger candles generally have longer burn times, so they're ideal for larger rooms or extended use. Consider the brand's reputation and read reviews from other customers to gauge the quality and performance of the candles. Personally, I recently purchased a jar candle from a local artisan shop, and I've been blown away by both its scent and longevity. It's made with natural soy wax and has a wonderful lavender scent that fills my room with a sense of calm and relaxation.