If I do data entry or similar document processing, you can expect the punctuation, spelling, and grammar to be correct. I also guarantee my work will not contain colloquialisms, present the company in a negative light, or otherwise be unprofessional. You can also expect a typing speed of 40 wpm.
If I do IT work, you can expect that I will resolve any technical issues presented to me in a timely and polite manner.
If I do filing and copying, you can expect that I will take a minimum of time to grasp your filing system, and keep the files in proper order. I will also have no difficulty figuring out how to use advanced copier/printer features or discerning and correcting errors in such devices.
If I do research, you can expect it to be reasonably thorough due to my developed ability to reference both conventional and modern resources, and understand the reasons for discrepencies between sources that conflict.
Finally, you can also expect that you don't have to pay me more than minimum wage, and that I'll never ask for a raise or promotion. I will work on holidays and weekends if asked, and will work overtime without pay if it becomes necessary in order to get the work out on time. Also, I will attempt to learn any skills I don't currently possess if that is expected.
The problem, as I see it, is that I'm offering skills and abilities, but employers only want years of experience, above average interpersonal skills, and college diplomas. People who are much worse at their jobs than I would be, are getting jobs instead of me because they have those things.