Same thing for the ZX-80 and ZX-81. If you were careful with your text prompts, you could save several bytes by injecting a keyword instead of typing it out, bu

Same thing for the ZX-80 and ZX-81. If you were careful with your text prompts, you could save several bytes by injecting a keyword instead of typing it out, but anything that was a "start of line only" could be tricky injecting into a string.