IntelliJ is the IDE if you are in the Grails/Groovy world, period. One of the modules which I was not using before and I have been using like crazy in the 2015 edition is the database module. They have great support for postgresql, our database of choice at Shoptimix. I have removed pgadmin from my dock due to features such as queries autocomplete, shortcuts to speed your queries trigger, export results as CSVs ...
Our use of Grails is mainly to generate JSON APIs and Paw is an absolutely joy to use if your work involves JSON API testing. They have support for everything: http verbs, headers, authorization, url parameters, parameters in the body as a json payload, response formatting, configuration files ... I love it.
I am a heavy Evernote user. However, it became messy for me to store all the code notes in the same program as invoices, manuals and plain text notes.
Because of this I was searching for a good code snippet manager when I found SnippetsLab. I've been using for just couple of weeks and so far so good. It has great support for code highlighting and dialects such SQL Postgresql. Moreover, it allows you to organise your code in folders