Visualization of simulation results

The current state of people producing quick-and-dirty, overview-like visualizations from their running and run simulations seems to be that everyone has their own scripts/tools, usually just barely doing the specific task they are designed to do. It would be beneficial to have a set of common tools helping with at least some parts of this process of a) retrieving parts of the files, and b) producing some overview of the state of a simulation. To get this started, everyone interested is asked to shortly describe below what they currently do in that respect.