I'm making a fairly large amount of money at my internship this summer and I want to start investing some of it. This would be somewhere around a 3 year(minimum)time frame, and adding only 1 or 2 times a year. I've got my options narrowed down to either ETFs or index funds. For an index fund I'm thinking something like VTSMX, and for ETF I'm thinking VTI or similar. My only concern is that I can only afford to purchase one index fund; whereas, I could purchase multiple ETFs. I would really like to get some exposure to foreign markets. I can do this through ETFs since I can purchase more than one, but not with index funds because I don't have enough to cover the minimum initial deposit for more than one fund. Also, I realize I will encounter brokerage fees with ETFs but this is a buy and hold and I won't be trading them. Vanguard charges an annual account fee of $20 per year for every fund account under $10K, so fees could actually be more expensive for the index fund. Any suggestions?