Stargirl suggested that Chloe make Watchtower a little bit homier in "Absolute Justice, Part 2". Apparently Chloe took the advice to heart, since when Dr. Emil gets infected by the meteor dust on Clark's breath, Emil grabs a bottle of beer from a rather well stocked kitchenette and then flops down onto a couch.
The "housewife" look Lois sports, while under the gemstone kryptonite, matches the comic book Lois; from Superman #36 (1945).
About 10 minutes in, when Lois says if Clark can bring home the bacon, she can fry it up in a pan - and never let him forget he's a man, she's playing off a famous commercial jingle for Enjoli perfume from 1982 (written to the tune of I'm a Woman by Peggy Lee).
Martha's wedding dress that Lois borrows looks remarkably similar to the wedding dress she wears in the comics when she married Clark Kent/Superman in Superman: The Wedding Album.
Martha Kent, Sam Lane, and Lucy Lane are referred to in this episode. Clark and Lois both talk to Martha at different times, and Lucy is heard screaming on the phone.