Bug Stop at Walmart, Lowes, Home Depot, Ace, etc
Get a gallon jug, comes with a sprayer. Also Ortho Home Defense.
Either one less than $10.
Spray around bottom of doors, especially garage doors, inside and out. Spray around base of house outside. Mostly covered areas as rain or sprinklers will wash it away.
Spray inside around baseboards and inside sink cabinets.
Just follow the instructions, better than I can recommend.