I recently started to exercise the Five Tibetan Rites. That is not meditation, more yoga. And even that they constitute yoga is disputed. But what is more important is that it really increased my energy level throughout the whole day, and it helps me a lot to start things, stick with things, and after a whole day of work still by motivated to have conversation, do everyday chores and enjoy life. Give it a try. (There is a small booklet by one Peter Kelder about it, telling an unbelievable story how they become know in the west through the quest of one British Army officer.)