A woodworking bench is more than just a table to lay your tools and project parts on. Used well, your bench is an all-in-one, three-dimensional clamping solution that will allow you to hold your work on any of its edges or faces. The traditional way to increase the work-holding capability is to place "dog holes" in your bench top, and allowing them to work in tandem with a face or end vise to secure parts of any size.
Sharpening a blade at home - whether a pocket knife, a chisel, a kitchen knife, a hand plane blade, a pair of scissors - is a relatively simple process. In theory. In practice, it can be a bit difficult, since the essence of sharpening a blade is less about the ability to remove material and create/straighten a new edge. Rather - the trick is removing that material at the right angle to create the bevel that makes up a blade's sharp edge.
Joining wood can be as much art as it is skill, and beautiful joinery really defines a piece of furniture. But for the times when you just need to quickly join a few pieces of wood securely, try the pocket-hole.
I spend quite a bit of time setting up for projects on the tools. It’s amazing how much time it takes to make a few simple yet complex cuts. For the type of cuts that happen often, it makes sense to make a few go-to jigs to help with those annoying set-ups.
Bottle cutters were everywhere in the 1970s...tucked in with the macrame and string art kits, they allowed hands-on folks to create recycled vases from wine bottles, or drinking glasses from jars, cool lamps and lighting fixtures, and all kinds of upcycled goodness, like this great project by my friend Tyler Goodro:
Unfortunately, the kits are increasingly rare and growing more expensive on eBay, so it's a pretty big investment if you're just interested in learning and not planning on cranking projects out in bulk.