I splurged and bought BasicGrey's Magnetic Precision Mat! I've wanted one for awhile and I think it's going to come in very handy.
The mat itself is 15" x 15" and is a self-healing magnetic mat. It comes with eight ultra-strong magnetic tacks to hold projects in place and an 18" magnetic, stainless steel, beveled ruler.
I knew I'd never be able to find this where I live, so I purchased mine from Amazon for $23.54. I ordered another item so my shipping was free. I always try get free shipping whenever possible.
Here's a video that talks more about it and gives some tips and tricks. I can't wait to start using mine. I'm so glad I gave in and finally bought one!