Once your on Disney property you can use their transportation to get around no matter if your visiting the themeparks or not and you can still tour the resorts even if your not staying on property. Definately tour all the resorts. You will need to take their transportation to one of the hubs or a themepark then transfer to the resort you want to visit.
It is very easy to tour the monorail resorts and walk around each of them, eat in their restaurants and even rent equipment (bikes, watermice, etc.). You can spend a day touring the monorail resorts then go to Contemporary and take the friendship boat over to the Wilderness Lodge. At night, you and your hubby can pick a spot on the beach at the Poly and watch Wishes at MK. Wait around until about 9:10 and watch the water pagent from the beach as well.
It is also easy to tour the Epcot resort area by starting at the Boardwalk and walking around. You can easily walk up to the gate leading to the World Showcase and watch part of Illuminations going off at 9:00 without having to purchase a ticket then walk back to Boardwalk and enjoy the nightlife.
Another way to visit some of the resorts is to start off in the evening at DTD and take the boats over Port Orleans Riverside or take the boat over to the Old Key West resort. The water trip is very plesant, quiet, informative and about 20 minutes in each direction. Get off the boat at the destination and walk around. For instance if you take the boat to Port Orleans French Quarter or Riverside, tour the resort, get a dessert and walk right on over to the next resort as they are right next to one another and will provide 3 different feels (French Quarter, Bayou homes and Southern Mansions).
AK is a great place to visit as well even though it is out of the way. Now I am an animal person and just love to watch them for a while. You can easily go there and animial watch, eat lunch or dinner and tour the resort.
You will do a lot of walking but can have a bit of the Disney magic without experiencing a theme park.
Also, you can purchase tickets to the Hoop Dee Doo (I am not a fan of this show but many are) and check out the Fort Wilderness area. You can also catch the Poly show as well.
Keep in mind that many resorts, especially Thurs - Sat., will have their own entertainment scheduled. For instance, if you were to tour PORS on a Friday night, you would See Bob the showman in the lounge. He is really entertaining to watch and all are invited free of charge. Of course any tips are appreciated and I'm sure Disney wouldn't mind if you purchased a drink at the bar either.
There are also things that you may want to check out during the day while the hubby is out. I believe that GF, WL and AKL offer brief (I think free) tours of the property a few times during the week. GF has an afternoon tea that you may be interested in (not cheap but you may enjoy the tea). You may also want to schedule some spa time at AKL or GF.
Lastly, if you do decide to buy a ticket to something (during the day) to enjoy by yourself but don't want to spend a lot of money, purchase a ticket to one of the waterparks, they are really fun to enjoy.