Taper

Can anyone give me details for tapering? Or tell me how to search the forums? I am three weeks away from a sprint tri. This past week I did 3 workouts in every discipline.  3-700m swims, 3-3 or 4 mile runs, and 3 rides of 12 miles, 12 miles and 25 miles. Do I do that one more week? In which case the pace coupled by work and family may just kill me! Suggestions for my remaining 3 weeks? Thanks!