My primary tool for software development is
Runtime Revolution, a feature-rich cross-platform rapid-application-development environment of surprising power and versatility.
In my time with RunRev and its predecessor, MetaCard, I've made a few utilities for my own use that I'm glad to share. Click a link on the left to read about and download a stack.
Because most of the processing is done in advance, this field is more responsive than some other implementations, though editing is not an option. Still, it's useful for a table of contents or an index.