Tips

Quick and Dirty Tips for Leading a More Lawful Life is prepared by Adam Freedman who reminds you that while he is a lawyer, he's not your lawyer.
You can subscribe to the podcast, or just listen to the program streamed on a web page. The "tips" are usually from 5 to 7 minutes long, and transcripts are available.
A recent question discussed -the constitutionality of  the recent Arizona immigration law - is a good presentation of some of the problems of federalism, examining the doctrine of pre-emption.