I have about $10k socked away into an HSA account from when I had a high deductible insurance plan. With an HSA you can leave the money in an investment account, you don’t have to withdraw it when the cost occurs. You just need to have receipts for the amounts you withdraw so you can show them to the IRS is bed be. So I save all my receipts for doctors visits, prescriptions, OTC medicine, glasses, dental, and anything else allowed. Then I have tax free money sitting in an investment account that I can withdraw tax free if I have a real emergency.

You can also put money into a Roth IRA and you can withdraw your contributions tax free.

There’s a bunch of ways to make your money work for you and still have access to it in a true emergency.