Have a self-employment career that just won't level fast enough? Is it anything but writing? I learned a nifty new trick to get you closer to that end result without too much effort. For the self employment careers that are based around a product of a skill that can be sold in buy mode, make one item that's worth a pretty penny. Go into buy mode and using the delete key or drag method (not the hammer) sell the item. Hit the undo button to get the item back. Then sell it again. Each time you sell it will count towards a wish to earn money or towards a money based career like sculpting or painting. I haven't tested it too much with produce or fish but I know for a fact it works for sculptures, paintings & inventions.
I was able to get to level 10 inventing career as well as supermax inventing without hitting level 10 handiness because of this little trick. This also helped me quickly finish 2 wishes with sculpting as the 5k and 20k are both over 5000 LTHP. Not to mention it made getting the 25000 career reward a lot easier so I could move onto something else.
Metro decided this was an exploit and is therefore banned from use in Dynasties and Challenges.