Orthogonolise building footprints by pressing 'q' for buildings with straight edges.
Upload a change set/ save your progress after a handfull of additions/changes/deletions. Submit a comment along with your changeset(when saving your progress in ID Editor) stating what you have done (since the previous save), and where appropriate why. This will mitigate the loss of your work and make your changesets easier to understand and therefore utilise.
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            Published using OSMCha: https://osmcha.org/changesets/150412477
            