This is just a learning exercise.
Lets say you want to be ready for the next 25% S&P500 drop. You have identified which stocks to buy, at what depressed prices, how to DCA and all that good stuff. And you are fairly disciplined so not going to start deploying the ca$h till market has dropped at least 20%. .
Now, comes the hard part - How would you ensure that you can quickly borrow a considerable amount of $$$$ at the best possible interest rates?
Borrowing against home equity is not an option.
How would you do it?