Are you finding telltale signs that a critter is raiding your cabinets at night? When laying in bed, is there a sound coming from your ceiling? If you have, then pests might be the source of the problem. There is great advice in this article about getting rid of pests.
Do you have a recurring issue with fruit flies? The issue may lie in your drain. Seal your drain with a sheet of plastic wrap and monitor the fruit fly situation. If you see some, the next step is to pour boiling water down it and scrub the drain thoroughly. This should eradicate the fruit fly problem.
One way that you are able to kill bees, wasps or hornets that live around you is to spray them with hairspray. Not only will this spray kill bugs on contact, but the smell will also deter others from coming.
Get an exterminator …