I know more than a handful of different ways to cast on and bind off my knitting, but I usually do the standards over and over again. I almost always use the long-tail cast on and the "standard" bind off. I would guess most of us are like that.
But now that I've looked through Cap Sease's book Cast On, Bind Off, I'm inspired to take my stitches on and off in different ways. This book includes a whopping 211 ways to begin and end knitting projects, from the basic forms most of us are familiar with to specialized forms you'd only use for particular projects like toe-up socks and mobius projects.
It's strange to think of a book like this as being inspiring, but it really is. You'll want to try out different techniques, say, the next time you're cast on for ribbing or binding off Seed Stitch (yes, there's a particular bind off just for that!). Sease tells you all about what different techniques are good for and any hints you need to know before getting started, so you can cast on or bind off in a different way with confidence.