Tools That Could Be Handy To Have

Tftpd32:

Tftpd32 is a free, opensource IPv6 ready application which includes DHCP, TFTP, DNS, SNTP and Syslog servers as well as a TFTP client. The TFTP client and server are fully compatible with TFTP option support (tsize, blocksize and timeout), which allow the maximum performance when transferring the data.

Here you can find Tftpd32:
http://tftpd32.jounin.net/

WinSCP:

It is award-winning SFTP client, SCP client, FTPS client and FTP client integrated into one software program for file transfer to FTP server or secure SFTP server.
 
Here you can find WinSCP:
http://winscp.net/

PuTTY:

PuTTY is an SSH and telnet client, developed originally by Simon Tatham for the Windows platform. PuTTY is open source software that is available with source code and is developed and supported by a group of volunteers.

Here you can find PuTTY:
http://www.putty.org/

Rufus:

Rufus is a utility that helps format and create bootable USB flash drives, such as USB keys/pendrives, memory sticks

Here you can find Rufus:
http://rufus.akeo.ie/

ImgBurn:

ImgBurn is a lightweight CD / DVD / HD DVD / Blu-ray burning application that everyone should have in their toolkit!
 
Here you can find ImgBurn:
http://www.imgburn.com/

Subnet Calc:

The SolarWinds Free Advanced Subnet Calculator is completely free and fully functional. In fact, it actually delivers four tools in one

Response Time Viewer for Wireshark:

Quickly analyze Wireshark packet capture file to troubleshoot performance issues

Here you can find SubnetCalc/Response Time Viewer for Wireshark:
http://www.solarwinds.net/
 
Wireshark:

Wireshark is the world's foremost network protocol analyzer. It lets you see what's happening on your network at a microscopic level. It is the de facto (and often de jure) standard across many industries and educational institutions.

Here you can find Wireshark:
https://www.wireshark.org/