>>96258074 (OP)
Travel costs money, whether it's booking passage on a sailing vessel or feeding and caring for horses or hiring a guide or buying a caravan or even paying duties at borders. Hirelings, men at arms and mercenaries cost money. Provisions cost money. Lamp oil, ropes, holy symbols, spell reagents, caltrops, etc. all cost money. Magic items cost vast sums of money. There are also always people who want a share of that money and might even feel entitled to it - the LOCAL LORD, the church, thieves, con men, honest officials, corrupt officials, organized crime, etc. How do your players cart around their wealth? Gold is incredibly heavy with equivalent values of electrum, silver, etc. being even more so, gems aren't very fungible for buying anything smaller than a house and other valuables like art and books and antiques are even less so on top of often being delicate. If your players are traveling light or can't bring it with them for whatever reason then they'll either have to condense their wealth into a portable form, stash it somewhere or simply leave it behind.
Seems like you've painted yourself into a corner by not keeping up on your logistics.