Anything where I have a well-defined thing that I want, but I don't have the talent or expertise to do it myself. For me that's design work, but for you it could be setting up a database, creating a kernel module, etc. I view outsourcing as a way to save money in the long term, but good outsourcing should cost a lot up front. If you're looking to save money right now by outsourcing, you are probably going to get what you pay for.