David Pogue wrote a piece in last week’s New York Times on some good ideas for iPhone and iPad apps that his readers have sent in. Sometimes it feels like all the good app ideas have been done before, but obviously that’s not actually the case!

In general the apps that resonated the most for me are ones that handle issues of waiting or saving time. For example one of my favorite suggestions in Pogue’s piece is the baseball app that allows you to see how long the line is at each bathroom and concession stand. Unfortunately that’s an idea that needs the coordination of Major League Baseball to work.

Here are a few app ideas that came to me after reading Pogue’s article:

An app that tells you how long the line is at Trader Joe’s at Union Square would be useful. Except that it would always tell you it’s too crowded to shop…

How about an app that tells you if there are any rental cars still available at the rental agency you’re going to? Or even better, an app for actually checking out a car, so you don’t have to wait in those endless rental car lines.

Is there an app that suggests interesting travel destinations? You could put in some parameters (weather, distance from your home, types of activities) and the app could provide a list of great places to go. Kind of like UrbanSpoon but for vacation spots.