Joria, for your question here:
I'd rather put my own houses on the empty lots before I enter the game. Is this a definite no? Can we not use any house we have in our bins? Is there a particular reason if the answer is no? (Yes, I WAS one of those annoying children who always asked "why?" to everything. Never outgrew it since I never grew up. )
Metro has already answered a similar question.
When we are placing houses, do they have to be EA houses? And, do they all have to be different?
Metro's answer:
Yeah, whatever EA houses are in your bin. But, no they do not all have to be different.
I can understand you'd like to place your own houses, this would make a very pretty Sunset Valley. But there is a specific reason we have to use EA houses only, although I don't think I can explain it without coming too close to strategy discussion. In a nutshell, using only EA houses makes the challenge even and fair ground for everyone.
Esther, my computer has become really old and I have more and more trouble to run the game smoothly. I use the "factory reset" trick of MoonsareBlue when a start a challenge file (
see details here). I find it helps much with keeping my challenges' saves as easy to run as possible. Also, I only install some of the store .sims3packs in that Sims 3 user folder, only the ones I find might be useful, so as not to overload the RAM.
Besides this, I always have a bit of lagging at the start of a new game in a town which is not Appaloosa Plains. I suspect it's the game populating the stray pets pool and updating the spawners for minor animals. After a Sim week or so, things go back to normal.