Did you know that using the File Open dialog in windows you can do a lot of the same things you can do on the command line? For example, to go up a directory type .. into the File name textbox:
If there are a lot of files inside of the directory you can filter it by typing in *.extension. Like this directory that has a lot of files if I want to quickly find the project file I can type in *.csproj and get a filtered view of all the files:
If you have any other obscure tips like this let me know in the comments.