I love that point when you can just pick up your project and knit. You have memorized the stitch pattern, so no stopping to check charts. Especially if you don't have to worry about shaping, you can just keep knitting until you might be close to the number of inches you need.
Then you stop and measure. Knit some more, stop and measure again. I will admit, I have measured, knit for what seemed like a long time, and when measured again the item was the same length as the first time. Being sure to always lay the item out flat can help. Don't get to eager to bind off, make sure you will have the length you need after blocking. Other times, I have been enjoying the knitting so much measuring revealed the item was too long.
After the knitting is finished, you move on to finishing a project. This stage has it's own challenges and enjoyments, come read about them next week.