The answer to 'DIY cricket control' is to use a combination of preventative measures and targeted treatment. First, seal any cracks or crevices around your home where crickets may enter, such as around windows, doors, and utility pipes. You can also use insecticide baits or sprays in areas where you've seen cricket activity. Be sure to follow the product instructions carefully and avoid spraying areas where food is prepared or consumed.
If you have a major cricket infestation that is difficult to control on your own, it's best to call in a professional pest control technician. They have access to more powerful treatments and can identify the root cause of the problem to prevent future infestations.