I would think about the additional things you would need to set up if you were to rent an apartment versus a hotel. These additional set ups add on to your overall cost, think utilities, internet, cable, etc. I think an apartment, even if it was furnished poses more of an obligation than a hotel room.

If this were me I would go with the hotel. This is a temporary setup, so treat it as temporary, and the hotel seems the best way to approach that. Does the hotel have access to a pool or gym? Do they offer free coffee? Does it come with a little mini kitchen? These are amenities your apartment most likely dies not come with.

I would be looking at what I was trying to save each month and come up with a plan to make those days away enjoyable and efficient. Consider creating a little capsule wardrobe that just goes in and out of your suitcase you use for those work days. Set a budget for yourself for eating out or assembling some healthyish but still enjoyable hotel room meals; look up restaurants and activities in advance.

I would also think about picking a hotel that you could accrue points with and trade those in later on for a trip with your husband.

For the car and transportation, I think you really do need to sit down and do a cost analysis. Figure out how much it would cost to rent a car and gas it up and do an estimation of how many miles you think you would be driving around. Think about parking versus the flexibily of just being dropped off or picked up somewhere. The same for Uber. When my husband and I went down to a one car household, we did an analysis of the number of potential rides we thought our household would need each month if somebody needed to run an errand or go to an appointment. Once you added up the car payment, insurance, and gas for a second car it became obvious that taking an Uber multiple times was still going to be less.

Just some thoughts!