Cut baby's fingernails while she's in a front carrier
Sara passes along a tip for easing fingernail trimming:
Cutting our baby's fingernails was the one of the more scary tasks we confronted as new parents: squirmy baby, sharp pointy things, restained limbs. It literally took 4 hands, and even then was challenging. Eventually my husband decided he would cut her fingernails while carrying her in our Baby Bjorn front carrier. It freed up both of his hands, letting him grab just one of her hands at a time. Often, he did this while taking a walk -- if she started complaining, he would quit, walk a while, and then cut another nail or two.
Interestingly enough, it also pointed to her hand preference. Holding a toy in her right hand while her left nails were being trimmed, no problem. Holding the toy in the left hand while her right nails were being trimmed was a problem because she kept transferring the toy back to her right hand.