What insect murderer product works best? I live in a basement apartment and as soon as the weather...

I live in a basement apartment and as soon as the weather warm up my place is infested with spiders, red centipedes, ants and black beetles (water bugs). What product do you recommend? Do any work economically? Are there any natural alternatives? Also, I hold cats and a dog so don't want anything that will hurt them.
Are these two bricks used for the exterior...
Answers:    I use Ortho Home Defense. I think it works great. I also have a dog and she have never had any problems. You can get it at Home Depot. The spray have no odor and it lasts for a long time. I used to live in an apartment and I used that stuff. I never saw any bugs and you know how tough it is to keep apartments bug-free.