Bug bombs are only marginally effective.
I use a fine mist sprayer and spray my whole house 4 times year. The stuff I use is made by Ortho (Indoor Home Defense? by Ortho). It can be bought in a 1 gallon jug that has the sprayer hose and head with the jug. It is for indoor use. It works great for me, but I also set off bug bombs in the garage as well as spray the Ortho stuff around.