Paper grocery bags can also be a roach's ticket from the grocery store to your home, so ask for plastic or bring your own reusable bags. Some roaches can and will crawl up drains, into sinks, bathtubs, and toilets. Also recommended is pouring bleach down the drains so the roaches can't get a grip and crawl up. Roaches are also attracted to dirty clothes. To be safe, keep laundry in a plastic bin without ventilation holes, rather than in a basket or on the floor.
Computer keyboards are an ant buffet.
They like that black residue that collects on keys over time, as well as crumbs from those who snack and type at the same time. If insects are coming in from a neighboring room, seal any openings between your room and the next to reduce bug flow. Use steel wool or caulk around pipes and in other crevices. Helpful sites Boric acid is a time-honored weapon against roaches. When applied correctly, it is an extremely effective complement or alternative to baits.