Quick Tip of The Day

Always Keep your App Dynamic. No Hardcoding of any sort which means ability to change things like URL's on fly, Use of Custom Object instead of Custom Setting, Creating of General Setting tab and allowing the user to change the same from UI instead of dong from the backend.

Thumb Rule - Think Twice, If your App Users needs to click the Setup Button in order to configure the app. Try hard to provide them an option to do all the changes from UI instead of going in the backend. This small development will play a big role in the success of the application on App Exchange.