Taxes

I just attempted to prepare my 2008 taxes online. I've done it myself for a few years and it's been straightforward: I'm single with no dependents, I only have 1, maybe 2 W2's, and I haven't owned anything of significance. I also never reported the interest paid on my student loans, which I know means less of a return for me, but I couldn't figure it out (I'm not very good with holding onto forms I get in the mail)... so anyway, it's never been all that confusing.

The only differences this past year were that I bought a car and reported the excise tax paid and I bought (and sold) company stock through my employee stock purchase plan.

So, I don't get who these people are that both Turbo Tax and H&R Block are talking about when they say they've found their clients an additional $2500 of returns. Do you have to own a home? A hybrid car? Have 3 kids? Be a student?

I have no idea. I know I'm not one of them, though.