Continuity mistake: In the original Toy Story Sid uses a magnifying glass to make a permanent burn mark on Woody's forehead. This seems to have disappeared for Toy Story 2.
Suggested correction: It's also disappeared in the final scene of the first film. Presumably, Andy or his mother were able to have Woody repaired at some point between moving and Christmas arriving.
Stupidity: Al is supposed to be a super serious toy collector and seller, but he handles valuable toys without cleaning the cheese puff dust off his hands.
Suggested correction: It's also established someone is coming over to clean said toys, dust included, and when he does the handling, he's just been sharply awakened by the TV therefore is off-kilter.