Hi. I just bought a whole set of DP needles. I also purchased needle holders to put on the end of the needle. Is it possible to knit an item using the dp needles and holders as regular single point needles? Or should I also purchase an entire set of sp needles?

You can use the dp needles with something on the end as regular needles, but only if the stitches will fit on them. Dpns tend to be shorter than regular needles, but if you’re doing something small, they’d work find.

I used to keep a project in DHs service truck for when I’d accompany him on service calls. It was just a ball of cotton yarn, and a pair of dpns with rubber stitch holders on the ends. They were the perfect size for knitting something small like that, and fit great into the glove compartment {as well as my purse!}.