Here's a suggestion, plagiarized from a friend who is an experienced meditator! For one month, meditate for one minute. Set a timer on your smart phone, and do one minute. If you miss a day, restart the month. After a month of consistent practice, if you find yourself invited to do so, graduate to two minutes. Build from there. After quite a few years, I have found that a 20-minute sit at the beginning of the day and a 20-minute sit at the end of the day work for me.