We didn't do any excursions last year. I wasn't working full time, so it wasn't in the budget. We probably should have just cancelled, but we had family going with us.
Hopefully, this time is different.
DS8 learned how to pan for gold at a rock shop in Skagway for $20.
At the port in Vancouver, they were handing out coupon books. Make sure you take one, especially if you like cheap souvenirs (t-shirts, etc). That's where we found the info about the place to pan for gold.
In Juneau, I went to the Alaskan Brewing company. They have a shuttle that leaves from their store downtown for a small fee. My wife took a tour of the state capital. I think that was free (or very cheap).
In Ketchikan, we had fish & chips and went shopping.
Maybe I'll post some pictures later.