I've always been concerned that I tend to slip and slide in the seat when doing the twisties. I did not want to mod my car with a five point harness. I found a simple, inexpensive partial solution. It's called a "locking clip". It's required on child safely seats. What it does is secure the child seat by not allowing the lap portion of the belt to loosen. It does the same for our driver's belts, but it secures one's butt. I feel more a part of the car and not launched from side to side.

Available at your local infant store. Made by evenflo. $3.98

 

Fortunately (or, unfortuantely ) my ass takes care of this problem. It fits snugly.

You must be small framed and/or slim? Not that it's bad or anything (actually better)!

 

Man, my seatbelt is too sensitive sometimes. If I lean forward too quickly, it locks.

I, too never slide in my seat, due to my relative size I guess.

 

Either eat bigger dinners or get bigger parents (probably too late on that one).