I use campden tablets (more specifically potassium metabisulphite) because they're quick/easy and get rid of chlorine/chloramine nearly instantaneously.
Even if I could boil (my city uses chloramine) a tablet's so much easier/faster.
Use at a rate of 1 tablet per 20 gallons of water, assuming your city uses about 2 ppm of chlorine/chloramine (which most do).
Kal