Inches are a fickle thing. I think that due to error, it's best to not measure more often than once a month, and don't expect huge changes even then.
Because I do my measurements myself, I know there's lots of room for error. However, I thought I'd see more change by now. Since November, I've lost 12 pounds and my clothes are noticeably more roomy. Yet in that time, I've lost only an inch, according to the measure tape. It was 2 inches, but from one month to another, I gained an inch back (not really, I'm sure it's error). Perhaps an inch is significant.
As for seeing no change in your appearance after 10 pounds.... I understand it takes around 20 pounds to lose a size (around that, and I don't know how accurate that info is), and you probably won't really see anything until then.