There are three basic tools I need as a modern technical consultant: A flash drive to keep software utilities handy; a small screwdriver to open the occasional computer case; and (most importantly) a steady supply of business cards for referrals and introductions as I talk with people during the day.

I’ve spent more time than I can justify pulling together a basic toolkit that’s with me all the time. Here for your enjoyment, costing less than $100, is my keychain toolkit:

LaCie 8GB iamakey USB Flash Drive. ($35)

Swiss Tech Screwz-All Keyring Tool. ($4.75)

MOO MiniCards & MiniCard Holder. ($19.95 per 100 cards)

I looked at a lot of different products before settling on these three. If you are curious, read on for some alternate flash drives and keychain screwdrivers you might also consider.