<human>: Can you give me the gist of the text in a nutshell?

Looking start better cordoning off my fuel budget (I have an exceptionally long commute each day) of $200 bi-weekly into an envelope-type system but am hesitant to leave an envelope of cash in my car.

I'm asking /r/personalfinance, does anyone use as system based on a plastic card that works well?  I'm thinking of loading a gift card with the budgeting amount periodically and using that but am open to other options that wouldn't leave me attached to a single gas station chain.  I could definitely be able to use the same chain for all my fueling needs, as they have the best rewards program available, but am thinking that a better way would be able to reload electronically directly from my bank account.
<bot>: Need a plastic option for my fuel-specific budget that doesn't tie me to a specific gas station chain and can be reloaded electronically.  An option without fees is highly preferred.