Do a moderate pruning as you bring your plants indoors. The older leaves of most garden plants begin to yellow as they're moved inside and pruning back will help encourage new growth that is better adapted to the lower light conditions indoors. Plants like basil also benefit from pinching back to encourage bushy growth. If your fall days are still sunny, you may need to water quite often to prevent your plants from drying out. As we move into the winter, your plants will require only moderate watering - no more than once a week.
Plants can also hide unwanted stowaways as they're brought in.
While they are outside, pests are controlled by a number of biological controls but as soon as you bring them indoors, YOU become the only pest control method. Check all of the leaves and if it looks like you have some insect activity, spray the plant with soapy water or insecticidal soap and make sure to spray both the top and underside of each leaf. Keep the plant out on the porch until you're quite sure you have killed most of the pests. Most houses have quite dry, warm air which can also encourage spider mites. Wash the leaves well under a strong stream of water to dislodge them and keep the plant well misted to increase the humidity.