This plugin came out a few weeks ago. Having won an award at the Orange County WordCamp and being featured on WP Tavern, it is deservedly receiving attention. Plugin Detective, developed by Nathan Tyler and Natalie MacLees (authors of another plugin recently featured here in the Pub), helps identify plugins that may be at the root of issues you are encountering on your site. One of the first steps in sleuthing a site issue is to deactivate all plugins, then enable them one-by-one. Plugin Detective helps take the pain out of that process.
I finally got around to giving it a go. Here's my walk-through…