I have a hard time remembering this at times, but have you tried the System Restore. See how far back you can go and hope that you still have a restore point from before your lady's shopping trip.

Bargain shopping sites seem to load a computer with nearly as many problems as the porn sites. Bargain Buddy and Home Search Assistant are a couple real dandies to get rid of. Both are spyware and will really slow a computer to a crawl.