According to Dushane Noble a knitwear designer at TSE, if you don't have a defuzzing gadget to removing pilling from your sweater, use a pumice stone on the chunkier knits. A sweater comb is best for fine gauge knits. Mr. Noble likes the Remington FuzzAway ($6.00 on amazon.com for chunky knits and sweater combs by D-Fuzz-It for around $3.00 at joann.com).
On the fine gauge knits, if you don't have a sweater comb handy use a clean, double-blade razor. Just drage the razor in downward motion to remove the fuzz (a a piece of cardboard inside sweater to create a smooth surface to work on.
It's chilly outside...get your sweater on!!!