Comment on Moom

If you tend to regularly interact simultaneously with multiple program windows and find yourself wasting time fiddling to get them lined up "just right", then don't. Buy this app instead, it does it quicker and most of the time better than you can. It's also easy to learn but with plenty of tweak potential, cheap, utterly reliable and you can also try it before you buy (via their website as opposed to App Store (tip, once happy do buy it via the App Store so that your updates are more nicely integrated into your system)).

Sorry to sound like an ad, but it really is quite a nice little app that is really deserving of a bit of attention.