Oh most definitely! Do not put it side out if it will fit end out. The handle should be towards you.
I have to admit, I have 'instructed' my wife and stepson that when taking a fresh bottle of milk from the main fridge, (we have 1 under the worktop in the kitchen and another large one in the front hall), to take the one nearest the door opening and then slide the others along to fill up the gap. Also, when re-stocking, they have to date check the new ones and put them in order. Do NOT randomly put them anywhere.
16k or 48k seems so small compared to how things have evolved. The spectrum 128 meant it had 128kb of data capacity did it?
Do you know when they stopped using cassette medium as memory?
There was an ill fated Sinclair business development of the Spectrum, which used 'floopy' storage - A narrow, endless tape system - like an audio 8 track. I cannot remember name or much of the details, but it had a better, full sized keyboard. The floopy worked much faster than audio tapes, because the system was designed for data, unlike the audio cassette.
I imported a floopy an S100 drive in those days and spent weeks designing and building an interface to mine and adapting the software interface. 8" floppy drives were 10x the cost and hard drives were the price of a decent new car.