is there a mod for the sims 1 that automatically adds money to a sim family every day or every few days without the sim having to go to work or do anything?

where can i download that mod?

I don't know of one but I could think of how one could work. 🤔 ...Now I kinda wanna try giving it a try, but I don't know when I might have time...

Even though the player can't see any days of the week, the game DOES keep track of days. Leo Grun (aka Damon) has a calendar that gives sims two days off from work or school per week, which you can find at https://white.leadpipecollection.net/sims1.php, where it's called Domcal. Looking at his calendar should make it clear how to use the game's calculation of the day of the month, and writing a BHAV to add money to the family funds should be simple. So all you need to do is figure out how much money to give the player and how often. :-)

(I haven't made the requested mod myself because I have several chronic illnesses, so my health is poor, and I can do very little these days.)

I hadn't even thought of that... which is funny because I once made--and I think shared (long time ago, Simblesse Oblige days)--a recolor of that calendar! It's literally in my game RIGHT NOW! One of my lots is using it! I think it was one of my first introductions to knowing the game had a calendar internally.

Now my brain is running wild about how best to make this object... (i.e. do I keep it simple (i.e. make an object that does things on a single schedule and amount I decide)? do I make TOO many options for people to choose when and how much to get paid? XD).

Maybe I should just jump in and play around. At worst I'll have given making the object a try!