What was the biggest DIY job you've ever done?

[TeddyPaul]

Use this thread to brag in.  What was your biggest job?  You can even post some pictures if you like.
 

[Alberto_99]

I'm not much of a bragger, mostly because I usually prefer to let the 'experts' do their thing when it comes to cars. But I did repair my car's dents on occasion! It's so much cheaper than taking it to the shop every time! 

[ihabb]

I'll be honest, I leave all the difficult and complex tasks to true professionals. I can change tires, I can change some filters and fluids and that's it:)