During my travel I forgot to bring my toothpaste and I just noticed it in a time where it is impossible to buy toothpaste, are there any other things that I can use assuming that I have my toothbrush, but I don't have toothpaste?

Most of the times I will do one of the following:

1. Borrow some toothpaste - This isn't always an option because sometimes I travel alone, and it is rude if I ask someone to lend me their toothpaste.
2. I'll just gargle - This is a no! no! I just do this if I am desperate. :D

During my travel I forgot to bring my toothpaste and I just noticed it in a time where it is impossible to buy toothpaste, are there any other things that I can use assuming that I have my toothbrush, but I don't have toothpaste?

Most of the time I will do one of the following:

1. Borrow some toothpaste - This isn't always an option because sometimes I travel alone, and it is rude if I ask someone to lend me their toothpaste.
2. I'll just gargle - This is a no no! I just do this if I am desperate.