Because of where I live up in the mountains, I buy most of my stuff online. I want to buy a stroller online and am looking for one that is tough enough to take with me on my daily walks. Any suggestions?

What you want is called a "jogging stroller". These types of strollers are usually made a bit more sturdy to handle daily walks or jogs. In the far left margin of this website, scroll down until you find Jogging Stroller and click on it.

I bought an Instep Jogging stroller off of Ebay and I love it. It has a swivel front wheel which makes it really easy to walk with or run.