I love my Easy Cut Tooltron Spring Action scissors. They look funny, but so useful. I even use them as my unsewing device. I gave one away to one of my quilting buddies, and she doesn't use anything else.
I also love my Clover Tweezers. They don't look like a regular tweezer, but the design allows you to grab lots of thread at one time.
I also enjoy my Gypsy Gripper for putting on the rulers to keep from slipping. You can buy them cheaper if you buy the ones that are used in showers, but I like mine because it is purple.
The other gadget is the Purple Thang.