How can I easily clip my 16-month old's fingernails and toenails?

I know how hard it can be. My 20 month old rarely sits still and sleeps so lightly that I can't cut her nails like I used to. Something that works for me is that I put her in front of the T.V. with a bottle (she usually gets sippy cups) She's so excited that she's actually getting to watch TV (I limit it a lot) and a bottle that she sits still. She holds the bottle with one hand while I go at the other hand. If your kiddo isn't excited about TV, find something else that he gets excited about (but an activity that he sits still for.) I put the backyardigans on for my daughter when I cut her fingernails...she is so intune to the show that she ignores me.