You can keep it as simple as you want to. I like flats pad folded (just a rectangle of fabric) in Flip covers. Green Mountain Diapers is my #1 place to buy from because their CS is so wonderful. I also greatly prefer pins to Snappis when I do fold and fasten a diaper on. I had some pretty decent injuries to myself thanks to Snappis, but the worst a pin can do is a single stick (I had a snappi shred my palm one time, it got stuck inthe carpet when I went to pick it up).
Oh, and there are a lot of other benefits to flats – they are cheap (relative to any other cloth diaper, and pay for themselves quickly), easy to wash, can take a beating, are multipurpose, and when you’re done with them they can be house rags! I have used them for bibs, burp cloths, sun shades, paint smocks, kid aprons, pee pads in the car seat of a potty training child, bandanas for pretend play, blankets, nusing cover ups, snot rags, etc. The list could go on and on!