This guy has some neat tricks up his sleeve. He even includes plans for the all the jigs at the end of the video and a tool list in the comments section!
I haven't watched the whole thing yet, but I'm really impressed with these hacks:
#6 chisel dowel maker (3:33)
#8 The smartphone bubble-level adapter is too cool. (4:49)
#21 The homemade mini lathe is awesome. (15:28)
What's your favorite?