The Missouri Saving for Tuition program, aimed at helping with the high cost of college education, is being touted as a big success. The plan, which started in November, already has $18 million in assets. Missourians have started more than 6,000 accounts. Vernice Monroe of the State Treasurer’s Office reminds Missourians they can deposit up to $8,000 a year in the accounts. In addition, the money is allowed to grow free of Missouri and federal taxes, so long as it pays for tuition, books, or other college-related expenses when it’s taken out.