Saving for RE Investments

[Ross Bowman]

My next RE investments will likely be much larger than my first SFH purchases. I'd like to get into vacation rentals and I'll need more cash up front to get them going (down payment, furnishings etc).

Besides simply putting money in a savings account, are there any better ways to save for real estate investing? I hate having cash just sit there and not work for me, so I'm wondering if there are some investment vehicles people use for this, that can easily be made liquid when a good deal pops up. 

Any suggestions? What do you do?