I personally took a pretty simplistic approach to this.... Start a new flat map and set everything that I wanted as default then save it and when I want to test something in a "fresh" map just load that up. and go from there. Just have to be mindful about doing a "save as" with it.
Gigabyte P67A-UD4-B3, Intel Core i7 2600K, 16GB Corsair DDR3, EVGA GTX 970 SC, Win7 Pro 64-bit SP1, Primary monitor @ 1920x1080, secondary monitor @ 1024x1280