Update: if you just want to play with some VPS or use it as a temporary VPN or something not important at all, use it. Its servers are in Canada and that's probably its only advantage. Avoid it if you want serious VPS. It's quite unstable..
Find a 90% off coupon for CloudAtCost.com through their Twitter account.
This is a VPS service, and you pay it once for life. While it might be not very safe/reliable to be used for web hosting, we can certainly use its cheap service as crawler or VPN or other stuff. It does not limit your usage in bandwidth..
Update the following coupon in cart:
GSFC45SR
The coupon has ended. Instead, now they offer 80% off directly on their website.