Don, a 75 yr old male with COPD, comes to his routine appoin…

Don, a 75 yr old male with COPD, comes to his routine appointment with his current inhalers: albuterol, ipratropium bromide (atrovent), and beclomethasone diproprionate (beclovent). He states, “I can never remember which of these I should take first.” Your appropriate response is: