I drive a car with a soft top, so its even worse for me than a jimmy'd lock or a smashed window. We're talking 3K for a new top.
As mentioned above, I leave NOTHING in the car. No chargers, no loose change in the cupholder, no papers, no pens even. Nothing. Thieves will be lured by ANYTHING. And I leave the car unlocked.
If I have something in the cab of the car that I just can't take with me (rare), I lock it in the trunk and disable the trunk release.
I once had ALL my gear stolen in one shot. Silly me loaded up the car the night before a trip. 6 rods and reels and all my bass fishing gear, which was hard to accumulate back 20 years ago. Funny thing, I found a bunch my bass gear for sale at a pawn shop in Westbank 6-7 years later. I knew it was mine as it had my own custom home made spinner baits and such in my tackle box. A Plano box with an Abu sticker I put on the side. No coincidence there...