Ireland’s boom years are long gone, but the Celtic Tiger’s tax breaks for foreigners are gifts that keep on giving.

For countries in the tax haven game, it’s a race to the bottom. Singapore’s welcome mat? Corporate taxes at just 17 percent. Gibraltar scrawls 10 percent on its rock, and the Cayman Islands boast 0 percent (even though everyone knows the tab on Cayman-registered profits ends up at 13 percent).

The co-founder of SoulCycle and Flywheel is credited with the meteoric rise of an indoor cycling trend.

OZY Media’s third prime-time television show, Breaking Big, airs Fridays at 8.30 p.m. ET on PBS stations, OZY.com and Facebook Watch. Join us as we explore the unexpected journeys to success of some of the world’s most influential stars.

So far, we’ve heard from Trevor Noah, host of The Daily Show, restaurateur Eddie Huang, actress Danai Jekesai Gurira and country music star Jason Aldean. This week, we turn the camera on Ruth Zukerman, co-founder of the fitness sensation that is Flywheel.

When it comes to fine knives, you’ll want to know your sh*t from steel. Here are some of the best.

What the hell happened to the gentleman’s knife? There’s been a lot of hemming and hawing since 2016 over how to reconnect to Middle America and country folk. Want to know how to connect with a man in Michigan or Louisiana? Flip out a nice blade — because the tradition of judging a man by his knife’s sharpness never died.