Accessories or Mods you regret doing?

Just curious what the buyer's regret is like out there...anything you've spent a whack of cash or changed on for the Tacoma and regretted doing later?

I haven't done a lot on mine yet, mostly because I've been broke, but I spent quite a bit on a used topper/cap/shell. It's been fairly handy for hauling boxes etc in bad weather, but the thing weighs a ton and you can't see out the back with the tinted windows on it.

 

I was a throttle body spacer casualty. The idea of adding a $100 part for 5 more horsepower and 10 ft/lbs of torque sounds great on paper but I think all it did was add a whistle sound.

 

Letting HIM buy potatocharger