Need to get rid of an extra Sim or two? Build a small pool (3x3) with a ladder. Have the extra Sims get into the pool and then remove the ladder. As soon as the Sims run out of energy they will drown. As an added bonus, the resulting tombstones can be sold for $5 each.
For more Tips & Tricks for playing The Sims, including Time Management, building Skills, and getting more money, click here.