Where on the sims 3 is the lifetime rewards tab?

Using a lifetime reward is not something you can like pick up and make happen. Your lifetime rewards happen naturally when your doing something that involves it. Unless you get the teleportation pad or the moodlet thing. thay are the most expensive. The teleportation pad is found in your family inventory and the moodlet thing is found in your sims inventory. As for the others rewards, they happen naturally. For example, if you get the lifetime reward "Speedy Cleaner" it just makes you clean faster than before.

I hope this helped :)