Lately, flash memory has become very easy on the wallet and it’s even more ubiquitous. When a family member asked me the best way (via mail) to send many digital photos to someone who had a computer I said use a CD. But then it struck me that it’s actually an SD memory card: Reusable, 1 postage stamp covers sending fee, and it probably won’t break inside an envelope! Furthermore, almost everyone has an extra one from before when they upgraded from 256MB on up. Works for me. 🙂