Beware, it's still not going to be easy to find one.
I got mine about four or five days after Christmas last year, and I got lucky. I still didn't see them out around until mid-July. I'm sure it'll be better this year, but I'd go around to the Targets and Wal-Marts in the area and ask them when they get their shipments in. For some, it's early mornings on a specific day (like Sunday as people in this thread have said), sometimes they get stock in during the week in the early afternoon (like 1 or 2 p.m.). Just keep checking back and be patient.
I actually gave up searching last year. Went into Target for other items, glanced over at electronics, and saw a shelf full. Bolted over there, grabbed someone, and got one. Actually, if you're in a major store and you don't have one already, apply for a store (like Target) credit card when you buy the Wii. You get something like 20% off your first purchase. I went to the counter, applied, got enough back for some Wii points or the Wi-Fi USB connector, went to the front, and paid the balance off with the cash I had to buy it. Worked out pretty well.
Happy hunting!