Debbie,
Try doing it while watching an indulgence. My mother only allows herself to watch Oprah if she's on the Treadmill. Needless to say most days she gets on it.
As for me, I do a Richard Simmons cardio most days since it doesn't send me into a heat wrap with my darling hardware induced tendonitis, plus it's an ego boost being thinner than most of the cast.
For my resistance work-outs I do the Biggest Loser 2 Boot Camp and the Denise Austin Boot Camp. By following along with the DVD I'm motivated to get my strength done in the right sets and reps. Plus, it's easier to do it with the DVD then having to map it out myself.
I'm still trying to figure out how to shrink the before & after photos so I can put them in the profile as one. It's 4 sizes and 24 inches, so it looks like a lot more than 16 pounds.