The most budget-friendly way to resurface cabinets is by using paint or a new stain. Sanding down the existing finish, applying a primer, and then adding a coat of paint or stain can create a fresh appearance. Another cost-effective option is to apply adhesive-backed veneer or laminate sheets to the cabinet surfaces. Keep in mind that while these methods are cheaper, they may not provide the same durability or longevity as more comprehensive renovation options.