Yup. I always carry an RCA barrel splitter with me: 1 M end, 2 F ends. I also carry a M/M and F/F barrel with me. Allows me to have a variety of in/out ends:
1M, 2F
2M, 1F
3F
I suppose if I carried another M/M barrel I could run 3M ends, taboot. Haven't really needed to, though, so I don't.