TA:
For a good, inexpensive meal on Maui, try Fran's Island Grill. It's a local place, lots of nice Hawai'ian style diner food for a very reasonable price.
If your mom likes scrapbooking, it's across the street from this place, which is how we found it:
http://www.islandpaperie.com/catalog...72&catid=31911
Which is apparently Scrapbook Nirvana. Fortunately we stopped on the last day of the trip so I could say, "Honey, the flight leaves soon, two carts full is going to have to be enough." If she sews, she'd also enjoy the Fabric Mart, which has several stores throughout the islands including one only a few blocks from Maui's Kahului Airport:
http://www.fmart.com/
With that one it was the limited cubic left in the suitcases that got me out.

Also, there's a big swap meet in Kahului every Saturday, which is a great place to get souvenirs (t-shirts, local crafts, etc) cheaper than almost anywhere else. If you're on Maui at the right time it's a fun way to spend a little time for almost no money. We parked at the church down the street and I think it's only a buck or two to get in.
M