Stamps and Ink Pads
Scrapbookers don't mess around. They devote a significant amount of time and energy to the preservation of memories in an artistic manner. If you're thinking of dipping your toe into the scrapping waters, the first things you're going to need (besides a scrapbook) are stamps in whatever themes you're planning to develop, as well as ink pads. Surprisingly, stamps are pretty pricey, so you might devise a system through which you swap with friends (mark yours with your initials if you want them back) or consider buying them used online.