Join us and share The local exchange systems gives you many opportunities to share. Put your new members information here Background, information, directions, times, locations. Share collective tasks Each association is only the sum of the actions of its members. That is why it is important to share the tasks related to the proper functioning thereof. The heading "Tasks" facilitates and encourages their distribution. Some tasks for the association may be paid in time or units. Solidarity contributions gain LETS for payment.