" buy a cheap standard and drag that one around" yep ;)
When you said it would screw me when returning on the main guitar,
I thought the same due to the smaller fret-space and body.
I remember pebber speaking about muscles-memorize.
So I choose a standard low-cost sized.
For example if I'm not at home I prefer transport and work on an electric guitar unplugged, bothering nobody.
Especially outside.
This is because I job, so I need to catch every moment to stop sucking with my "repertoire" -lol- of metal songs, with my sucking hands technique.
Just, with a small guitar, I pictured me better working like a geek at the bar's terrace with beers and friends huhu