Food goes anaerobic and gets smelly more quickly when it is cut off from oxygen. Use a container with an aerated lid.
Collect your organics in a cool, dry place, such as under the sink or in your refrigerator.
Keep a container in your garage or basement lined with a larger compostable bag so you can take your smaller kitchen bags out more frequently.
Sprinkle baking soda in the bottom of your compostable bag when you replace it. Baking soda is a natural odor-eater.
Remember - there is nothing going into your organics that isn't already going in your garbage. Smell is a natural part of organics decomposition.