### Basics

* no debt; no dependents; early thirties
* 401K is maxed (5% company match)
* ESPP is maxed out 10%
* Roth IRA is maxed out
* salary is about 115K
* 100K cash in a checking account

### Question

I am trying to figure out a way to invest the extra cash that doesn't involve a lot of "maintenance" or education. I have tried to get in to personal finance in the past but it almost bores me to death after every attempt. I want to keep things *really* simple. At the same time I don't think I have enough money to hire someone to handle my money completely. 

I have looked into bonds, but it doesn't even really seem worth the effort considering the amount I would be able to put into them. The best option I have seen so far is to just pick a couple ETF's that are rated well and stick all my cash there. Is there something I am missing? This is cash I wouldn't want to touch for 10+ years. I just want to forget about but at the same time not lose money in the process. Any recommendations for someone in such a straightforward situation?