Most of these aren't really needed except for the Shazaam one. (Even that isn't needed if you have the trainer from here.) Once you activate the cheats enabled code (testingcheatsenabled true) you can shift click on your sim to change it's traits and age it. If you shift click on your mailbox you also get a few other handy options like filling your needs, meeting everyone in town, making new friends, as well as one to make a toddler an NPC. Also, you can shift click and manually slide your needs to full (or empty if you want) as well as shift click and manually slide your friends status all the way to best friends. (or all the way down if you want lol)
first time i made a sort of alien type look, but didnt like it so i had to delete and start over...this time i have a genie type look and have him how i want, but this time i forgot to change his favorites and such.
OOh, found a new one. With the testingcheatsenabled, if you shift click any blank area, you can immediately teleport there, no need for an actual teleporter. Its great for collecting seeds, rocks etc, go to map view, zoom down to a place you wanna go, shift click teleport and your sims appears there
After enabled the testing cheats ability, you can simply drag your needs meter and relation meter to full at any time, but the skill points are no longer effect by this cheat, so you still have to learn and train you sims for any skill you need for job. hold shift and click on you sims will enable you to change the trait of your sims at any time, you can do the change up to fit the problem that your sims is facing, press shift and left click on mail box will enable a cheat menu that allow you to lock all needs at full stats, know every sims in town, making random friends, force visit and change job/job stage.