Depends on how much baggage you have. If it is fairly light (ie: You, your wife and bags can fit in a prius), you can Uber home for about $30 plus a tip. If you need a larger vehicle, UberXL can run up to $60, but it'll be MUCH more pleasant and comfortable than a comparable taxi. If you've never used Uber before, use my promotion code uberJIMSAV for a discount up to maybe $10 or so on your first ride.
Now, that depends on whether Uber is surging or not (premium prices when there is high demand, could double, triple or more the price). When you get to the side of the road, plug in your destination and you should get a good fare quote. You'll be surprised how quickly your ride arrives. A tip is never necessary but I promise, it's appreciated. So are 5 star ratings.
Now, being a train enthusiast - and again, this depends on how much luggage you are hauling around, follow the previous post recommendation and board Metra's Southwest Service to Worth at 12:35pm (You can assume your Amtrak arrival will be late) for a 40 minute ride and $6/per person ($3 if you qualify for reduced fare). From Worth, a quick Uber will get you home quickly.