On the 1st of the month I list out the challenges, then I go through my stash and photos and plan out what I can use for what challenge (this also helps me to figure out what (if anything) I may need to purchase, so I can plan on putting in an order and leaving those challenges until last. Other than that I start with the easy challenges first.... gallery love, blog scraplift, etc.... doing a few fast ones at the beginning gives me drive to push through the rest fairly quickly.