I don't own a lot of long-sleeved shirts, but since my move to college they've kind of become a necessity. I had some old long-sleeved shirts that I never wore so I decided to see if I could refashion them. This shirt was just a simple boxy crew-neck.
I took one of my shirts that I liked and traced the neckline and waist onto the long-sleeved shirt.
I cut along the lines and resewed them. I also ended up taking in the sleeves as well. There was a lot of excess fabric so I even made a little rose clip.