The store window Daffy appropriates is at Lacy's Department Store, a pun on Macy's flagship New York City store. And the bedroom set on offer features twin beds, which were popular at the time (and to please the censors, no doubt).
The DPW seen on the trash bin is short for the Department of Public Works, which included sanitation and garbage clean up.
The cuckoo bird in the cuckoo clock breaks the fourth wall, in addition to both main characters doing so.
The kitchen department shows the very latest in home appliances, including a wringer washing tub (the automatic washer and dryer would soon be appearing on the market, too).
The sight gag of the buckshot pellets opening the door was expanded on 20 years later, in the Pink Panther short, Pink Is a Many Splintered Thing (1968). This time, a swarm of angry insects was featured.