Help requested

I just had a birthday yesterday. After one's 16th, 21st and 30th birthday,it just seems rather normal and uneventful. It's mildly depressing to move up one age bracket. I am no longer a young and youthful 25 - 34 year old. It's a really good thing I'm not too bothered about getting a year older and how I look. What's important is how old you feel, and I feel like I'm still in my late 2o's.

On to more important things, I have 2 questions on knitting. Any help or comments will be greatly appreciated. Firstly, I have completed the Harry Potter scarf ( a few weeks ago) and made a small error. Here it is all completed. It was actually a very easy and mindless knit. Great for knitting on the go.Here is the error. I did the 3 needle bind off for both seams. However, I did one seam right side facing and the other seam wrong side facing ( as I couldn't obviously turn it inside out). Should I rip out the seam so that it looks neater and matching?? The perfectionist in me says yes, the lazy one says no. Hmmmm......... My other question relates to a new project. I am knitting the superhero's cape from New Knits on the Block, by Vicki Howell. The lil man has a fancy dress party to attend, and he fancied either being a superhero or a pirate. I've got a pirate costume sorted out. I thought I might make the cape anyway. In the instructions, on the increase row, it says, "k1,*inc 1 in next stitch, k1, inc 1 in next stitch; repeat from *". If I start with 40 stitches, I end up with 120 stitches. But in the instructions, it only has 66 stitches. This can't be right, can it??!!!I'm knitting the cape in Filatura di Crosa Zara (100% extra fine merino) in bright blue and the gold from my leftovers of the HP Scarf. This is what I have so far after some ripping out!