Dental tape is so much easier to use than floss, it's very similar, it just easier to hold and use. I also have a water pic, but I don't think it does what floss can do, but for stimulating gums and other things it's great. My new favorite thing is TePe Plastic Interdental Sticks
TePe Plastic Interdental Sticks. I have a small mouth too and it's difficult to open wide enough to get the back teeth, the sticks work great for that or if you hands ever get stiff.