Alt+G on a call jumps straight to the implementation. Go to implementation Alt + G Put your cursor on a symbol and jump to its declaration or implementation, then use Alt+← to walk back through your trail. It also works on symbols inside comments and on files outside the project.
Type a few characters to narrow the whole solution. Open file in solution Shift + Alt + O Fuzzy file search without opening Solution Explorer. Type \path to filter by folder, -string to exclude matches, or a,b to match either one, and the filter sticks between uses.
Results grouped by project and file, reads apart from writes. Find references Shift + Alt + F It finds every usage of a symbol, grouped by project and file, and tells reads apart from writes. In the results window, P toggles scope and D shows declarations only.