diff --git a/MANIFEST.in b/MANIFEST.in
index 354b1814..aa16b485 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,5 +1,14 @@
-include *.rst *.txt LICENSE tox.ini .travis.yml docs/Makefile .coveragerc conftest.py
+include LICENSE *.rst
+
+# Don't package GitHub-specific files.
+exclude *.md .travis.yml
+
+# Tests
+include tox.ini .coveragerc conftest.py dev-requirements.txt
 recursive-include tests *.py
+
+# Documentation
+include docs/Makefile
 recursive-include docs *.png
 recursive-include docs *.py
 recursive-include docs *.rst
diff --git a/PULL_REQUEST_TEMPLATE.md b/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 00000000..80dff8ef
--- /dev/null
+++ b/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,12 @@
+# Pull Request Check List
+
+This is just a reminder about the most common mistakes.  Please make sure that you tick all *appropriate* boxes.  But please read our [contribution guide](https://attrs.readthedocs.io/en/stable/contributing.html) at least once, it will save you unnecessary review cycles!
+
+- [ ] Added **tests** for changed code.
+- [ ] New features have been added to our [Hypothesis testing strategy](https://github.com/python-attrs/attrs/blob/master/tests/utils.py).
+- [ ] Updated **documentation** for changed code.
+- [ ] Documentation in `.rst` files is written using [semantic newlines](http://rhodesmill.org/brandon/2012/one-sentence-per-line/).
+- [ ] Changed/added classes/methods/functions have appropriate `versionadded`, `versionchanged`, or `deprecated` [directives](http://www.sphinx-doc.org/en/stable/markup/para.html#directive-versionadded).
+- [ ] Changes (and possible deprecations) are documented in [`CHANGELOG.rst`](https://github.com/python-attrs/attrs/blob/master/CHANGELOG.rst).
+
+If you have *any* questions to *any* of the points above, just **submit and ask**!  This checklist is here to *help* you, not to deter you from contributing!