I skipped the 10% Challenge the last two months. I didn't mean to, but in January we were on our way back to Ethiopia, and in February we were in the middle of will-our-children-ever-leave-the-orphanage, and I just forgot to make the donations. But it's March, and the challenge is back on. I decided it's easier to just look at my credit card bill and round up for tutoring costs (which is the only thing we pay cash for) and use 10% of that, instead of keeping receipts all month.
This month's donation is to Doctors Without Borders.