Beginner's Tutorial: Reasonable use of VPS remaining traffic

VPS is very cheap nowadays, and I guess many webmasters use it. But what should they do with the excess traffic every month? Many times, it is wasted. Then the following methods can make reasonable use of the remaining wandering and occupy very little system resources.
1. Use Vagex to earn US dollars
Vagex is a relatively reliable idle project that supports Windows, Linux and other systems. Generally, any VPS with more than 128M memory can be idle.
Detailed tutorial: Vagex uses Debian VPS to make money 2. Scientific Internet access
1. Use MyEnTunnel
There are many ways. You can build your own VPN or use an SSH account directly, but it must be used in conjunction with the MyEnTunnel software.
Download the green version of MyEnTunnel: myentunnel-unicode.zip
Configuration diagram:

After setting, save and connect.
This forms a sock5 proxy with the address 127.0.0.1 and port 7070.
2. Use Tunnelier
Download: Bitvise Tunnelier V4.29 Green English version Enter the SSH account and then connect.
The proxy is socks and http proxy, the address is 127.0.0.1, and the port is 7070.
3. Set up VPN
Method: Install PPTP script on Debian/Ubuntu/Centos OpenVZ VPS