Vacuum!
Vacuum the mattress, box spring and couch.
Get into all the little hard to reach areas to remove any roaches or their eggs.
Vacuum the floors, especially along the walls.
Professional exterminators will often use a vacuum to suck up as many roaches as they can.
The less clutter there is around the house will make it easier to get rid of the bugs.
Gather up all trash and garbage and get that out and make sure that the garbage is taken out every day. Roaches are attracted to the food in the trash.
Also, keeping the kitchen clean, dishes washed and floor swept and food put away where the roaches can't get to it is important.
Good luck! :)

I am trying to rid my house of the hoard that I have collected over the past 2 years. There is food, clothes, etc. When beginning the clean up, I discovered that there are roaches also living here. I don't know how to clean furniture such as my couch and mattress to make sure the roaches are not living in them. I don't really have money for all new furniture, any ideas?