Little Sprocket is coming along great.  He's officially 5 weeks old today,
eating like a champ and playing up a storm.  I am having more accessories
for his "playpen" cage shipped so he'll have more interesting things to
run up and play on.  He's really good at climbing up the wire walls and
leaping sideways onto the lower shelf, but he doesn't fancy the cardboard
ramp I've taped on to get to the higher shelf.  He slips on the cardboard
and doesn't "get" about digging his claws into it.  Nor does he scratch
or sharpen his claws on the cardboard I'm put down flat.

It's his claws I want to ask about.  They're growing a mile a minute, and
when I have him out to leap and pounce about the sofa, etc., he's
constantly getting them caught on cushions, curtains, even on my flesh.  
(Ouch!)  Is he old enough for me to start cutting them?

His cage is currently in the livingroom so he can be in the middle of
things and observe my three adult cats.  Should I move the cardboard
scratching thingie the big boys like closer to him so he can see them
using it?

Thanks.

Priscilla