I leave a pre-paid card for the companion that helps my husband. Is there a pre-paid card you don't have to buy each time?

You can probably set up a "rechargeable" card through your bank. If this is for a specific store, you can set up an account with the store itself. Read the back of the card, I thought Visa's were rechargeable.

I bought a Visa Gift card at the market and leave it for them in case they go out for lunch or to a store, but I have to pay $5.00 for the card. I wanted to know if any banks or companies let you just keep putting more money on them instead of buying new ones each time

Never heard of this. Can you explain more about how this works?