My kids go bonkers when they see me drop my iPhone on to the hard tile floor—it makes a good demo! I have no fear there, because the NewerTech NuGard KX ballistic case protects the phone (or iPod or iPad). And it makes a much better grip and adds little weight or bulk.
This is a no brainer. OWC memory is a fraction of the price that Apple charges. Go to 16GB (the max) in laptops and MacMini, and 32GB in the iMac, and 32GB or more in the Mac Pro.
Backup or lose it
Backup isn’t sexy, but it decidely bites to lose all your Stuff.
For the Photoshop and Lightroom user
The OWC Mercury Accelsior E2 is an ultra-fast PCIe SSD with dual eSATA ports. Install it into a Mac Pro (tower style) directly, or connect to any Thunderbolt-equipped Mac via the Helios enclosure. It makes Photoshop and Lightroom rock.