If you've been thinking about trying to get a pair of custom made jeans to (hopefully) eliminate fit problems, you may want to check out this Daily Candy Groupon-style deal with
[Only Registered Users Can See Links. Click Here To Register] for a half-price pair of custom jeans. I checked out their web site and it looks like they should be able to support petite sizes easily, as most of the form fields for measurements are text entry instead of drop-down lists with measurements prefilled. The one drop-down list with constrained measurements was the one for Overall Height (the FAQ explained it was for getting an idea of your bodily proportions) and that one went down to as short as 4 foot 6 inches. Not bad!