Actually...I should add....we're still getting walks, too. Just not the regular ones. We've swapped the morning walk for staying on our street [usually just Sunnie...Dan declines to go (he has a potty trip under the deck after breakfast so he's already empty)]. But we go out in the afternoon when it's not as bad for about 1/2 mile.
If the weather isn't a concern, our walks are basically about 1/2 mile in the morning and another 1/2 mile in the afternoon (Sunnie's not as good with longer walks anymore and Dan really never has liked walks unless he's able to be off leash), so this weather hasn't really impacted on us all that much. The worst part has been salt on the ground, honestly.
These guys get their best exercise chasing each other from room to room around the house (circling around the stairway in the middle of the house). Since Sunnie's been on Rimadyl, she's a lot more interested in acting like a puppy as much as she can. Whatever works....