Finding a therapy "study partner" is actually a good idea, and is a suggestion used by Dr. Richards himself when he runs his CBT groups here at the Institute; he recommends that each of the group members pair up and study the therapy together, as it keeps you motivated.
What OGirly suggested is a good idea as well; keeping a journal writing in it as often as you can, might be a good motivator. It can also serve as inspiration of how much progress you've made, if you read it sometime in the future and see all the successes you've had over social anxiety.
Another thing you can do is post sticky notes, 3 X 5 cards, or anything small that can be written on, with therapy reminders (example: slow down, calm down, don't listen to the ANTs, etc.)...and to post them in areas around your house where you can see them everyday and acknowledge them. These can serve as constant reminders of the therapy and the cognitive strategies.
The most important thing, however, is to ensure that you get the 30 minutes of therapy in every day; so even if it requires clearing your schedule in order to accommodate the therapy, then definitely do so as getting into the habit of doing therapy everyday will eventually become habit, and you'll have more motivation to do it.
Hope that helps.