I've really gotten into a stock trading strategy that I discovered during the FIN 502 portion of my MBA crucible.
In brief, it's merely buying preferred shares below their call price and just holding on until they are called. That way I receive the usually substantial dividends and a nice little ancillary bonus when they are called. And if they are not called, then I'll have what amounts to veritable perpetual annuity, which ain't a bad situation to be in at all.
This is in addition to my basic foreign and domestic portfolio of foreign oil tanker stocks (high dividend yield) and Arizona municipal bond funds (preferential tax treatment) and foreign bond funds (better to be a creditor than a debtor on the international stage). If the federal government won't do it, then it's the private-sector's duty to pick up the slack. IMHO, I'll follow that old aphorism: be the change you want to see in others.
But hey, i'm an old school/new school free marketeer. (Incidentally that's why I went to business school-- to be a better investor) My MBA program was not tailored to what I wanted; so, I just learned what I wanted to learn and went along to get the degree.