How to preclean area?

I'm starting over. I already bugbombed. What else can I do? An old dude told me he vacums everything like the walls and shit and then scrubs everything down with dishsoap and a sponge. Does that sound good? And is there anything else I can do?

remove any old carpets or shit off the floor, curtains etc..., give everywhere a complete vacuum, and then bleach every surface.
open the windows for a day or two, let the bleach evaporate, job's a good un.