Clean as you cook-

“Use your oven's self-cleaning feature immediately after cooking, while the oven is still hot. This will reduce a lengthy warm-up time.”

https://www.powerhousetv.com/EnergyEfficientLiving/EnergySavingTips/101WaysToSaveEnergy?utm_source=WS&utm_campaign=Energy-EfficientLiving/Energy-savingsTips/027471