Currently in full swing are the 100 Days Happy challenge, and the #365Grateful challenge. I haven't jumped on board with the 100 Day Happy one, only for the reason that if you're grateful for something every day then happiness should follow right?
One challenge I have begun though is one you won't find on FB, or Twitter, or Instagram - unless you're following my feeds and random updates. On April 7th, my yoga studio - Bikram Yoga Red Deer - started the 30 Spring Cleanse Challenge. Essentially, it boils down to a pretty simple premise (in theory). For 30 days straight, you do 30 yoga classes. So, you go to yoga once a day for a month, essentially.