This is a list of tools and resources that I use and enjoy.
Sublime Text – Sublime Text has a ton of handy features that have saved me a lot of time.
Visual Studio – The obvious choice for any .NET development
JS Fiddle – For JS/HTML/CSS sketching
LinqPad – For code sketching and DB access
Regex Hero – For creating and testing regular expressions
MDSN – Microsoft Developer Docs
MDN – Mozilla’s documentation of various web standards
Stack Overflow – Dev Q&A
Dev Doc – A site that compiles documentation from a variety of web technologies in one place.