Portland, Maine, also has many historic houses, but the neatest is the birthplace of Longfellow, whose father fought with Washington. Longfellow's sister inherited the house and lived with its early 1800's kitchen until her death almost a century later.
On the way up to LL Beans as you enter Maine there are dozens of factory outlets. In the off-season they are not as crowded as they are in the summer and may offer some great bargains.