120GB SanDisk 2.5-Inch SSD Plus for $40 {or 240GB for $70}

If you want to build a performance moat around your terabytes of storage (they are called “terrabytes” if you store the hard disk drives underground [I just made it up]), the 120GB SanDisk 2.5-Inch SSD Plus (SDSSDA-120G-G25) is on sale for $40 with free shipping at Amazon by Amazon itself (limit 4) and by Best Buy on eBay (limit 5; free Store Pickup also an option).

If 120GB is not enough storage, the 240GB version goes for $70 with free shipping at Amazon by Amazon itself with a limit of two per customer.