1. Find that perfect one-button project that needs something special to make it stand out. I recently knit a cozy for my smartphone using some handspun I found in my stash (in the festivus colorway, no less!), and went scavenging through my button bins to find the perfect finishing button.
3. Let go of the notion that all your notions must all look alike and button your sweater with a hodgepodge of mismatched buttons! I got this idea from a sweater model in Ysolda Teague's TNNA booth in Columbus - it was such a cute idea, I intend to try it out for myself sometime soon!
Shameless self-promotion: If you'd like to try this at home (and I recommend that you do!) I've got all kinds of one-of-a-kind buttons in my etsy shop - all of my hand-picked grab bags feature an assortment of vintage buttons, and I make a point to ensure there are several sets of matching buttons mingling with their mismatched milieu.