I use a point protector on the end of my dpn to indicate the beginning of a round. These are small and ro not get in the way or weigh down my needle. I really get a lot of use out of them.
These little point protectors are super! They go really small and up to 10.5. They stay put and are easy to take off. Best of all they are just plain cute!
I recently purchased the Clover Small Point Protectors. I was pleasantly surprised by the lime green color (versus the teal that I saw) that I received. They are "gummy" which helps them to stay on. This also makes them a little hard to get off, but insures they won't fall off in the bag.
I like the small and the large point protectors from Clover. I would recommend them and also purchase more in the future.