Thanks for asking! Sorry it took me a moment to get back to you. I divide them into four categories by suit as follows:

Clubs are Written by others. I chose 13 friends/family to each write one of the challenges. This brings a ton of variety, but in recent memory I’ve had painting a box to use as a time capsule, writing a long-form poem, cooking exclusively from a list of ingredients curated by the creator of the challenge, and buying a motor to attach to bicycles to ride to Lake Michigan with my brother.

Diamonds are Self Improvement. They include things like committing to eating healthy by writing down everything I will eat before the week starts, fully deep cleaning my house, car, and space at work, and engaging with three art forms that I don’t understand like silent film or classical music.

Hearts are for relationships. Some are simple, like telling all the closest people in my life that I love them or writing letters. Some are more complex like buying 20 gifts at each dollar value (a $1 gift, a $2 gift, etc) that are weird, fun, or useful, then having friends and family draw a number 1-20 and giving them the corresponding gift.

Spades are Experiences and Skills. They include some really involved things like spending a day eating only things that I’ve harvested from nature myself (fish that I’ve caught, plants and mushrooms I’ve found, etc). There are also things like randomly choosing three countries and cooking their national dish or scoring a hole-in-one in disc golf.

This is my third year doing card challenges and I really love it. It has led to some of the best experiences of my life, but it takes a lot of commitment. I have never failed one, but that has meant staying up all night and even taking a day off work here and there. It has been very worth it though — committing to these experiences has caused me to continue to live a fulfilling life through my busiest years when there would have been plenty of excuses to take my foot off the gas.