Understand the Wi-Fi preference pane to make helpful changes to how your Mac's networking behaves in certain situations. »
Square Cash is our favorite peer-to-peer payment app for its simple, uncluttered interface, fast setup, and solid security features.
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.
If you want a calculator that has lots of power features but values its user interface above all, you'll want PCalc.