Help with database design

[Marcus Reed]

I want to build a database to track vehicle expenses and I'm trying to figure out the best way to build something like this. I want the users to be able to insert records for things like maintenance, gas, tolls, etc. Any other ideas someone has feel free to elaborate on this. When I am thinking about how this will work, my idea is that I would have one master expense table with primary key of ExpenseID, and sub tables like maintenance, gas, tolls, whatever and those would be linked to the ExpenseID right? Please help, I'm not the best with conceptual thinking. ;-)