Houseplants: Inspect regularly for pests on indoor plants. Keep in mind that plant-specific temperature, light, and humidity are key to ensuring that indoor plants thrive. See Houseplants
Mulch/compost - Renew mulch to conserve water and discourage weeds. Use fallen leaves to provide the carbon ingredient needed for successful composting and also to make a good mulch.
See Backyard Composting & Landscape Mulches
Landscape and garden pests: Continue monitoring and treat as needed. While cooler weather generally means fewer pests, some populations actually increase at this time of year.
See Garden Pest Insects
Insect Management in the Home Garden
Landscape Pest Management