I play in a group that likes to steal each other's stuff constantly, and by looting/stealing from other players, I have accumulated 1008 gold pieces. My GM does not really care about the weight of money, but I would prefer not to lose it. I was wondering if there was any way for me to store the gold to keep it from the other PCs.
Convert the gold to gems.
Then sew the gems into the seams and lining of your clothing.
Harder to get to without waking you up. If someone wakes you up while they are trying to rob you, welcome them to Stabbytown. Show no mercy.
Have a talk with the other players and confirm that this form of PvP (stealing from other PC's) is how you all want to have fun. If so, invest in needle and thread.
I originally phrased this as "Stop playing with this group of jerks." A few of the comments pointed out that if everyone at the table is fine with mutual larceny there's no harm done. Stealing from one's fellow characters is a play style that goes back to proto-D&D as played by its creators: Not much PvP per se, but very MUCH "uneasy alliances between ruthless pirates."
Gold or platinum garters
A simple non-magical solution I've used is to make or purchase gold or platinum rings of solid metal that fit snugly on the PC's upper arm, or even better their thigh. These are nigh impossible to steal.
Make sure they are solid metal, not a chain, as chains are easier to break and remove from the body. And of course, don't tell the other players or PCs that you've done this. Only the GM need know.
Investments and banks
As you accumulate more wealth you may want to consider placing your holdings into investments that are far more difficult to steal, such as land, buildings in a town, a castle or a keep of some sort. A reputable bank is also a good option if there are banks in the world you adventure in.
First of all, it seems to me like your group is very willing to play with PVP, which is kind of unique for D&D groups. To reflect some of the other answers, this play style may or may not break your game eventually, and you may benefit from being a bit more cooperative in your games. However, it seems that you enjoy this style of play, and for that I would highly recommend playing a game of Paranoia for some over-the-top comedic backstabbing and PVP.
To actually answer your question, I would offer two solutions.
- First of all, you could invest in something expensive that fills a character-specific niche. If the other players in your group can't make use of it, they might be less likely to take a single item than a large horde of gold. Of course, they may try to sell your item, but at least watching a single item is easier than protecting all of that gold.
- If you are a heavy magic user you probably won't be asking this question, but on the off chance that you are a ranger or other applicable character, you might want to learn the spell Alarm. The spell itself is low-level, doesn't require much in materials, and should protect you without fail. You should be able to customize your alarm field to only permit yourself, and place it in a small enough area that it won't be triggered through an accident.
With that, I bid you good luck.