diff --git a/sigl/domain/service.py b/sigl/domain/service.py
index c7914eb..e90eddb 100644
--- a/sigl/domain/service.py
+++ b/sigl/domain/service.py
@@ -226,7 +226,7 @@ def list_entry_set_crossedOff(session: Session, listId: int, entryId: int, cross
 
 def products_all(session: Session) -> List[Product]:
     """Return all Products."""
-    return session.query(Product).filter(Product.remember is True).all()
+    return session.query(Product).filter(Product.remember == True).all()    # noqa: E712
 
 
 def product_by_id(session: Session, id: int) -> Optional[Product]:
@@ -238,7 +238,7 @@ def product_create(
     session: Session,
     name: str,
     *,
-    category: Optional[str] = None,
+    category: Optional[str] = '',
     remember: Optional[bool] = None,
     notes: Optional[str] = None,
 ) -> Product:
diff --git a/tests/test_21_product_service.py b/tests/test_21_product_service.py
index b54e4f6..eec76c1 100644
--- a/tests/test_21_product_service.py
+++ b/tests/test_21_product_service.py
@@ -6,7 +6,7 @@ Copyright (c) 2022 Asymworks, LLC.  All Rights Reserved.
 
 import pytest
 
-from sigl.domain.service import product_by_id, product_create
+from sigl.domain.service import product_by_id, product_create, products_all
 
 # Always use 'app' fixture so ORM gets initialized
 pytestmark = pytest.mark.usefixtures('app')
@@ -24,6 +24,18 @@ def test_product_create_defaults(session):
     assert not p.locations
 
 
+@pytest.mark.unit
+def test_product_create_without_category(session):
+    """Test that a Product can be created with a blank Category."""
+    pc = product_create(session, 'Eggs')
+
+    assert pc.id is not None
+    assert pc.name == 'Eggs'
+    assert pc.category == ''
+    assert pc.remember is True
+    assert not pc.locations
+
+
 @pytest.mark.unit
 def test_product_create_forget(session):
     """Test newly created Products can have remember as false."""
@@ -34,3 +46,17 @@ def test_product_create_forget(session):
     assert p.category == 'Dairy'
     assert p.remember is False
     assert not p.locations
+
+
+@pytest.mark.unit
+def test_product_all_items_skips_non_remembered(session):
+    """Test that querying all Product items skips non-remembered Products."""
+    p1 = product_create(session, 'Apples')
+    p2 = product_create(session, 'Bananas', remember=False)
+    p3 = product_create(session, 'Carrots')
+
+    products = products_all(session)
+    assert len(products) == 2
+    assert p1 in products
+    assert p3 in products
+    assert p2 not in products