I shall review proposals that have been made to patch doubled spaces and explain the difficulties that arise in an effort to achieve consistent patching. Then I shall propose a scheme based on C-spaces that leads to a consistent patching but requires additional coordinates to those of doubled spaces. The T-dual pairs are identified as subspaces of the gerbe in C-spaces. The talk is based on work done with Paul Howe, arXiv:1612.07968 [hep-th].