Macworld Changing your Apple Watch band can make an old watch feel brand new again, but it can also get pretty pricey, especially if you buy one of Apple’s official bands. Well, not anymore, because Amazon’s Woot is selling a variety of normally-$99 Solo Loop models in all sorts of colors and sizes for up to 70 percent off. Numerous colors are available, from black and white to blues, reds, yellows, green, and purple, and the gorgeous Pride edition in both regular ($30) and braided versions ($20). Just note, that you’ll need to measure your wrist to select the size you need. Since these bands …