Helen,
One of the best spots to visit with Chip 'n Dale is the
Garden Grill Restaurant at Epcot. Character dining is a great way to save time since the characters come to you; you don't wait in line to meet them! Also at Epcot, they are often at Character Connection in Future World.
At the Magic Kingdom, they can often be found at the Town Square Exhibition Hall.
At Disney's Hollywood Studios, you may find them in the park's entrance when the park opens.
At Disney's Animal Kingdom, they may be at Camp Minnie-Mickey.
To confirm their appearances, you'll want to grab a copy of a the
Times Guide when you arrive at the parks (located with the park maps). This guide will list the characters that are out and about as well as the times/locations.
I also have to tell you about Chip 'n Dales Campfire Singalong at Fort Wilderness. It is a campfire for roasting marshmallows, a singalong with the characters, and a movie under the stars. And the best news, it is free! No reservations needed either. If you'd like more information on this, please let me know (just click
here). I'm happy to help.