Understand the Wi-Fi preference pane to make helpful changes to how your Mac's networking behaves in certain situations. »
Banktivity is our favorite budgeting app because it's easy to use, offers plenty of features and, most importantly, makes managing your finances easy and relatively hassle-free.
Square Cash is our favorite peer-to-peer payment app for its simple, uncluttered interface, fast setup, and solid security features.
If you want a calculator that has lots of power features but values its user interface above all, you'll want PCalc.