<prompt> Human: I just received 10K and along with some cash that has built up in my checking account, I need to invest it in something.Id like to move towards purchasing a condo this year, so keeping the money somewhat liquid for a down payment is important.What should I do? I imagine I should just purchase shares of an index fund? Is this a good idea? Bad idea?What are the favorite Fidelity index funds?I have some IRAs there too, invested in 3 different Fidelity mutual funds. I have been thinking about moving at least some of them to an index fund as well, so the advice is much appreciated!  <response>: Ally offers a nice interest rate on savings. Put it there. 