We've always thought our beauty photographer friend would make an excellent sniper: both professions require you to hold ramrod-still while you pull the trigger. One-eighth of a second doesn't sound like a long time, but most of us coffee drinkers can't freeze our bodies long enough to snap a clean photo at that shutter speed--try it sometime!
The alternative is to lug a tripod around, but those are heavy and they're hell at revolving doors and subway turnstiles. So here's a rather brilliant and inexpensive DIY way to reduce camera shake. (And it's even simpler than the last string tripod we showed you.) Enjoy!