Not sure if this is the right place to ask this question (if not, please move it or direct me elsewhere). I'm wondering about the custom ROM zip files that I place on my SD card (as well as any other zips like kernels and themes). Once I load the ROM/kernel/theme do I need to keep the file on my SD card or can I delete it (to free up space on my card)? I'm nowhere near filling up my SD card but I'd like to know if I ever get close to that point. Thanks!