Just wondering

1.) If Patronus charms are so difficult to do and can only be done by very powerful wizards, why is everyone and their brother doing them in Harry Potter and the Deathly Hallows?

2.) Why are there no freezers anywhere in Catz? What if someone (totally hypothetically, of course) had some Ben & Jerry's and needed to store it?

3.) Where the hell am I gonna store my suitcases?