Update: Deal over.
Today only, Amazon has a selection of SanDisk and WD memory products on sale!
Sample deals:
SanDisk 128GB Extreme MicroSD: $19.59
SanDisk 256GB Ultra microSDXC UHS-I Card: $27.99
SanDisk Ultra 128GB SD: $16.79
SanDisk 256GB iXpand Flash Drive Go for iPhone and iPad: $54.99
Western Digital 3TB USB 3.0 and 2.0 External Desktop Storage: $63.99