A simple money tip for Bitcoin buyers: switching how you fund your buys can save you a chunk of cash on every purchase.

• Buying Bitcoin with a debit card is instant, but it quietly costs about 4% in fees each time.
• A bank transfer costs nothing and only takes a day or two to clear.
• If you buy on a schedule — daily, weekly, or monthly — there's no reason to pay extra for instant speed.
• Beginners lose the most here simply by not knowing the cheaper option exists.

Outlook: Anyone making regular, planned Bitcoin buys can pocket that 4% by funding with bank transfers instead of a debit card.