On my last trip to Vegas I found out that when you have multiple markers from different dates the oldest markers are paid first. When I mentioned this to a fellow forum member he suggested that this would allow an interestimg advantage play.
For example:
You have a $2000 credit line. Repayment due in 30 days.
On day #1 you take a $1,000 cash marker. On day 29 you take another $1000 marker. The next day you pay back the first $1000 marker.
You repeat the process.
Question: how long can you continue this before the casino catches on?