The problem with that line of thought is it's just a matter of time before something of interest or appeal to you will get taxed and no one will stand up and resist either. Sort of the FUIGM mindset. (F U I Got Mine)
28g is huge. I have emails going back to 2000 and I'm at 1 gig.
Anyway, first delete the BS items,
then delete anything with an atteachment that you don't need,
then in Outlook go to File > Archive and archive that which is no longer relevant.
SMG rocks. The "M" button is really the Dr. Jekyll/Mr Hyde button. Non M is docile and lumbers along like an older 7 series - perfect for driving around the wife and in-laws. M turns into a gas sucking (really) super car monster. You're heart will be pounding if you drive it like it was meant to...