Garlic can do some pretty amazing things and one of them is keeping bugs off you and out of the yard.
What you'll need is a large spray bottle
a kettle
a large jar with a lid
water
2 cloves of garlic
strainer and something to mash the garlic with.
Cut, mince or crush the garlic, put it in the jar. Once the kettle has boiled fill the jar and put the lid on once it's cooled some. Come back tomorrow or the day after. The garlic will have turned bright green, strain it out and pour your garlic tea in the bottle. Spray as needed. Use for aphids on plants, areas troubled by ants, or go out and spray down the whole yard before going out for some time in the sun.