running android with no launcher app topic

hi all, its been a long time now since i first thought on running my phone without any homescreen/launcher app, since i am no fan of fancy animations, rather than that i prefer a phone that doesn't lag and have a decent battery life I've installed the simpliest slimest launcher i know (slim launcher) it weighs only 0.9 mb, but still it uses ram and processor to run, now given that I'm on slimkat it jumped to me again, having slim pie /notification shortcuts, ive decided to set all my apps into those tools, meaning fill up three slim pie rows with essential apps and notification shortcuts with the rest, but before i do anything i would like to read some insights from other users, possible limitations when deleting my last launcher app, and if it would/wouldn't be beneficial regarding battery life and performance, atm i see just one limitation and it's the number of apps i can install to my phone due to the limited amount of free spaces on slim pie + notification shortcuts

any thoughts would be pretty much appreciated

sent from the grey stuff inside my skull