Expenses by property - an accounting question

[Tina Allaire]

How do you keep your rental property expenses separated by property? I am trying to come up with a good system that doesn't require a ton of work on my part.

Do you have a separate credit card for each property? Do you go through each transaction and classify it to the correct property? 

By the way I have vacation rental properties so I end up having a lot of transactions I would like to classify by property.  

Thanks in advance for any feedback or advice!