Best strategies for most sweeps are to enter as early in the morning as possible (3am-4:30am seems to be ideal for me in central time zone) & hit the enter or submit button right after the clock changes to a new minute (to increase odds that you'll be the 1st entrant if that happens to be a preselected winning time.) Also, maybe focus on sweeps with the most prizes...I usually don't bother with the smaller sweeps.
