Isn't it weird that there isn't a central list of post offices at, oh I don't know, say, USPS.com, that tells you which post office branches are going to be open late tonight for last-minute filers? [more]
According to this Kiplinger's tax tip video, only 1 in 150 personal tax returns get audited. Realistically speaking, your odds of getting audited are probably even lower than that. In fact, it's virtually zero.