Marvin Fitness will open in late January at 4701 Priem Lane, Ste. 2F. Marvin Fitness offers members a two-month challengeÑthe member who loses the most weight in that time receives cash. Class times will be 7:30 a.m., 8:30 a.m., 6 p.m., 7 p.m., 8 p.m. and 9 p.m. 512-584-6943