My HSA administrator just invests it in a target date fund, which sounds reasonable. I usually leave enough in there to cover the yearly deductible and invest the rest.The thing I don't like about having OneDrive is that people still send files as attachments, rather than sharing them in OneDrive so they become collaborative documents. Drives me batty. In my opinion, the biggest strength systems like this have is that there can be one document, in a place, and multiple people can contribute. Even better would be to introduce branching, or a pull request type of workflow, but FFS people don't even understand the sharing and collaborating thing so branching would be way out of the question.
Also, investment monkeys: I just realized that my HSA isn't invested and I need to sort that ASAP. Without going to deep into it, what's a solid "set & forget" thing I can invest this thing in, until such a time that I can dive in a little deeper and figure it out? Something like S&P500 or whatever? I know fuck all about this shit.