Bedbugs can't survive heat. 1 hour over 100F or a few seconds at 200F kills them. Depending on what you have available, either throw your clothing in a dryer on high for an hour or use a steamer that goes over 200F to rid them. Alternatively placing them in a black garbage bag in a parked car for a day if it's hot out will also do it. Depending on what is infested, some plastic totes to stage things that haven't been treated yet can greatly limit their ability to re-infest while you're treating stuff, and re-treat within a week if you're not certain (their life cycle is about a week, so treating the same item twice in a week kill get any that survived before they can multiply again)