Just like swatching, some people don't like finishing their projects. It can be hard when you finally get into the rhythm of the stitches to stop, bind off, and be faced with pieces rather than a finished object. But picking up the sewing needle and joining each piece with care can bring its own satisfaction. The satisfaction of a job well done.
Be sure to block your pieces before sewing, it is much easier! Some think blocking sounds scary, but sheep get wet, it won't hurt the yarn. Then just lay it flat on a clean surface, a towel on the floor, spare bed (unless you expect it to dry really quick!), or counter or table top for smaller pieces. After laying them out, I like to pat the piece out to the schematic. Pins are usually only necessary to help prevent rolling edges.
While the project is drying is the perfect time to start the beginning of a new project. Unless you are already to the middle on project two, then you can just knit.
When dry, careful seaming can take an item from homemade to handmade. A subtle distinction, but one that helps separate the "you made that, didn't you," comments from the "where did you get that." comments. Plus, you spent how many hours knitting, now is not the time to skimp on attention.
Now the really fun part, put it on! Don't forget to take pictures and share them, we want to see too.