Each entry into TMDR is a block. Blocks can be used any day of the week and in Student Choice for late night meal exchange during normal operating hours. Flex dollars can be used in TMDR, Student Choice, other retail dining on campus, and at snack/vending machines. Unused Blocks do not carry over from Fall to Spring Semester. Flex dollars will carry over from fall to spring but all flex dollars must be used by the end of spring.