If the nest is on or in your home, you should have an exterminator remove it. However, if the wasp nest is in an area of your yard that you don't frequent, you can leave it alone as long as the wasps don’t bother your household members. Wasps are very active during the summer months, but they will vacate in the fall and not return until the following year. So, if it's safe to do so, you can leave it, but if it poses a threat of being stung because it's in an area that you use frequently, consider having it removed.

Boric acid is among the harsher chemicals you can use in your home, and it poses risks whether ingested, inhaled, or touched. Kids and pets alike tend to put their hands and mouths on anything within reach, so it’s always a good idea to store boric acid in a spot they can’t get to and use it only when they’re not around for an extended period. When you use it, ensure they’re out of the house and fully clean up any trace of boric acid when you’re done because even a small amount can cause problems. 

Certain strong smells may help repel bats, though this is not a foolproof method and is best used in conjunction with other deterrence strategies. Scents like peppermint oil, eucalyptus, cinnamon, cloves, and mint are often suggested as natural remedies. To create a spray, you can mix two cups of warm water with half a cup of sugar and a few drops of your preferred essential oil. Apply this mixture using a spray bottle to possible entry points and throughout the affected area, such as an attic. While this home remedy is popular, evidence supporting its effectiveness is limited.

Flea and bed bug infestations are equally difficult (and gross) to remove from your home, requiring professional treatments and long-term follow-up prevention. However, fleas are worse pests to have in your home because they can carry and spread disease to your pets and household members. You should take action to eradicate fleas and bed bugs as soon as you spot them in your home.