I’m a command-line guy, but lots of people on my team perfer graphical tools.
WinScp is a really useful piece of software. From the WinScp website:
WinSCP is an open source free SFTP client, SCP client, FTPS client and FTP
client for Windows. Its main function is file transfer between a local and a
remote computer. Beyond this, WinSCP offers scripting and basic file manager
functionality.