What to do with Savings/Reserves

[Eli Sunderland]

Hello everyone!

I've got a fairly simple question for all of you. What do you all do with your savings or reserves? For example, if I buy a property and know that I need to keep $X in reserves for vacancy/CapEx/repairs/etc, do you guys put it into separate savings accounts? When someone's portfolio grows, I'm sure this number can get fairly large, so it doesn't seem like people would want all of that money just sitting in their bank account, not growing with interest.

My next question, which is very similar to the last is, while saving up for a down payment for your next property, do you like to invest income into anything to expedite the process? 

Thanks!