The dollar can be used once a day. It has to be a dollar’s worth of a product, service or use of a product. For example, A dollar’s worth of a $100 TV would be the life of the TV divided by 100. You would get to enjoy the TV for that amount of time. The product or service is instant and doesn’t require any preparation. It just appears and disappears. Or you could have a TV permanently that is worth one dollar.
Short bursts of great stuff are better than long periods of shitty stuff.
If an annual pass to a museum is $100, i would spend two day’s dollars buying 3-day passes to lots of different museums for a friend and me. Do we auto transport to the city? Or does the museum just appear at my house?
On the other days i would take a couple of laps around a track in some cool cars, have sips of some very expensive whiskey, and ride short sections of trains around the world.
During the week i would search the internet to find great $1 specials at bars all over the world and on weekends i would slowly have a beer on a beach in Mexico, vermouth in Barcelona, coffee in Modena, a mojito in havana, …
If you have a dollar, you can choose to either enjoy the beverage or the destination for a time equal to one dollar. You get a magic door and are teleported back as soon as one dollar’s worth is used. As I am sticking with only what I wrote as the rules, since there is no rule that says you cannot split it into 50 cents each, you can do that. You can also save up the money as that is not in the rules.