Fanaelialae
Legend
You could simply give them less gold (for example, give them the minimum, or half the normal amount). At the lowest levels you might want to be slightly careful with this, since the acquisition of plate armor for front-line fighters is fairly important to long term survival (having played a paladin in a low gold campaign, I speak from experience).
If you're running a sword & sorcery campaign, like the Conan stories that were part of the inspiration for D&D, you might rule that PCs lose most of their unspent gold between adventures carousing and otherwise living it up. Just make certain that this is understood up front.
Lastly, and this is the method that I would recommend, give them cool stuff to spend their gold on.
For example, in a recent game we robbed the mansion of a very rich man, coming away with something like 20,000 gold at 4th level. 5,000 of that was in business deeds, which we decided to return to the people of the town.
There was one deed for a clockworks, whose owner was dead, which we decided to keep as a hideout. Upon searching the shop, we discovered a clockwork man and reactivated him. He explained that he was a creation of his father (who was the dead owner), and that his father had been in the process of upgrading him so that he could attain his intended potential. He wanted to complete his father's work, but it would require 5,000 gp and he understood that we were unlikely to want to part with such a sum for a complete stranger. Of course, being PCs and flush with gold, we decided to grant him the gold and after several weeks of work he began producing more of his kind, unlocking Warforged as a playable race within the campaign world.
Finally, almost everyone rolled well below average for hp when leveling up. The DM announced that for 1,000 gold (each) we could undergo special training that would allow us to reroll. Most of the players took him up on the offer and were very pleased with the results.
If you're running a sword & sorcery campaign, like the Conan stories that were part of the inspiration for D&D, you might rule that PCs lose most of their unspent gold between adventures carousing and otherwise living it up. Just make certain that this is understood up front.
Lastly, and this is the method that I would recommend, give them cool stuff to spend their gold on.
For example, in a recent game we robbed the mansion of a very rich man, coming away with something like 20,000 gold at 4th level. 5,000 of that was in business deeds, which we decided to return to the people of the town.
There was one deed for a clockworks, whose owner was dead, which we decided to keep as a hideout. Upon searching the shop, we discovered a clockwork man and reactivated him. He explained that he was a creation of his father (who was the dead owner), and that his father had been in the process of upgrading him so that he could attain his intended potential. He wanted to complete his father's work, but it would require 5,000 gp and he understood that we were unlikely to want to part with such a sum for a complete stranger. Of course, being PCs and flush with gold, we decided to grant him the gold and after several weeks of work he began producing more of his kind, unlocking Warforged as a playable race within the campaign world.
Finally, almost everyone rolled well below average for hp when leveling up. The DM announced that for 1,000 gold (each) we could undergo special training that would allow us to reroll. Most of the players took him up on the offer and were very pleased with the results.