Remove overripe fruit, food scraps, and trash
Wipe down counters, sinks, and drains
Fix leaks and reduce excess moisture
Empty and clean garbage cans regularly
Cover fruit and store food in sealed containers
Use sticky traps near windows, sinks, and plants
Set out a bowl of apple cider vinegar with a few drops of dish soap
Place a small amount of wine or beer in a trap container
Use a vacuum to remove gnats directly
Replace or clean houseplant soil if it is infested
Let soil dry out between waterings
Clean drain buildup with a brush and drain cleaner
Seal cracks around windows and doors
Turn off unnecessary lights at night near open windows
Keep screens in good repair
Dispose of compost promptly and keep it covered