How do you like to spend your downtime? You know, that blissful time for you and you alone. Is it in the arms of an overstuffed chair reading a good book or in the hands of a manicurist? Tell us what soothes you and why--using no more than 100 words. Send to Downtime, View, Los Angeles Times, Times Mirror Square, Los Angeles, Calif. 90053. Include name, address and daytime phone number. No phone calls please.