By Kirk Miller The best way to enjoy some of our favorite tech from the likes of Bose, Sony, Acer and Samsung? Go certified refurbished via eBay. You’ll get “like new” products refurbished by the manufacturer (or an approved refurbisher), with all the standard included accessories and a two-year warranty. About the only thing different is that your headphones, laptops, earbuds, etc. will probably arrive in non-retail packaging. But that’s a small price to pay for getting up to 40-60% off, as eBay’s latest refurbished sale offers. The bad news? These deals go quickly — several items are close t…