If you like to have precise control over the size and position of your windows, you should know some keyboard and mouse controls that allows you to local the window edges to the sides of the screen. You can also use the third-party app BetterSnapTool to supercharge your window control efforts.
You can search for files using the Raw Query function in the Finder. This gives you the ability to use wildcards to search for files with specific file names. You can also use other file attributes and combine them for even more complex searches. Raw Query is also very fast and can search your entire drive in seconds.