Tammy wants to purchase a car and she needs a place to keep her money safe while she's saving. She doesn't plan on touching the money once she puts it in the bank, but once she finds the right car , she will need to access the money immediately.

Tammy should consider using a high-yield savings account, which offers a higher interest rate compared to traditional savings accounts. This way, she can earn some extra money while she's saving for her car. Additionally, she may want to consider opening a checking account with the same bank, so she can easily transfer her money from savings to checking when she's ready to make the car purchase. Tammy should also make sure that the bank she chooses offers mobile banking, so she can access her money quickly and easily, from anywhere.