Amazon deals: Graco backless TurboBooster, headphones, iPod FM transmitter, Swiss army knives

A new month usually brings a new round of promotions at Amazon. Here's what I found during my initial poke around the site:

25% off Graco Backless TurboBooster seat
If you have the TurboBooster (my favorite booster seat), you only need to remove the back to get the backless version. But if you're a carpooler or regular chauffer to little ones, it's handy to keep a second booster in the car. Good price -- not sure how long it will last.

50% off headphones (including kids and noise-canceling models)
We have found that, for our sound-sensitive son, noise-canceling headphones have been a godsend while traveling, and even on drives home from school. You can find an inexpensive pair that may not be as perfect-in-quality as the pricey models, but they will do just fine for your kids' music and Gameboy play.

Belkin FM Transmitter for the iPod 88% off!
Could this be a pricing mistake? As I write this, this FM adapter is 88% off ($9.95, usually $79.95). We use one of these (unsure of which brand) in the car so we can listen to the iPod without a direct plug-in jack.

50% or more off Swiss army knives
Woo hoo! Swiss army knives are on sale again! They're the inspiration for the Parent Hacks logo and an indispensable part of any Parenthacker's arsenal.