Double 2 - Giving you a physical presence when you can’t be there
KeywordTool.io - KeywordTool.io is the best FREE alternative to Google Keyword Planner and Ubersuggest. It uses Google's autocomplete feature to get over 750+ long-tail keywords for any given query.
Perch - A bird’s eye view of social activity for you AND your competition.
Google Trends - Explore Google trending search topics with Google Trends.
Nudee - Create a 3D printed "nude selfie" (slightly NSFW)
Keywords Everywhere - Free browser add-on for keyword volume, CPC & competition