In the fall, when the weather turns cooler, it is common to find ladybugs in your house. They come in seeking warmth for the winter. Ladybugs are welcome in your garden because as they eat aphids and plant mites that feed on your plants. They won't eat anything in your home, including you -- they don't bite. But since they seek winter shelter in swarms, you may find their numbers are making you uncomfortable. Get rid of them easily and get back to life as usual.
Since they don't bite, simply pick them up by hand and throw them outside. Your porch might be covered with ladybugs, but if only a few made it inside, this is the best way to get rid of a few ladybugs.
Vacuum them up with a shop or household vacuum cleaner. Empty the bag or canister outside, away from your house, immediately after vacuuming. The ladybugs won't be hurt by the vacuuming, and will crawl right back to their lives.
Use ladybug traps, which employ a bright light to attract the ladybugs. They are available at your local nursery, hardware store or home improvement store.