Re: Paying bills in Sims 3

@sealexandra  First of all, when your sims have 24 hours left to pay a bill, you'll get a notice in the upper-right corner of your screen.  Clicking the button to pay now will debit the money from your sims' household funds without their needing to access the mailbox.  I know it's not a solution, but it does give you time if you don't want to use the other more immediate approaches.

With mods, specifically NRaas MasterController this is quite simple.  Click the ground right next to the welcome kit, select NRaas > MasterController: (the one with the colon, not the bullseye) > Radius Purge > 3, and you'll see a list of items in that radius.  Select the welcome kit and click the check mark, and the mod will delete it.

You can instead enable cheats, specifically these two, in order:

testingcheatsenabled true

restrictbuildbuy in buildings off

You should then be able to edit any part of the lot.  Don't forget to disable the cheats when you're done.

You could also move your sims out and edit the apartment lot in Edit Town.  If you don't want them to live elsewhere, you could evict them in Edit Town and put them back when you're done, but they'd lose their promised wishes and opportunities.