Help,想問吓大家中學啲書,練習同埋NOTE會 KEEP幾耐 Thx

囡囡今年讀F5, 想問吓大家會否重 KEEP 住 F1-F3 啲書,練習同埋NOTE ?大家又會 KEEP 幾耐 .......我重KEEP 住 F1 起的書,因屋企真係已經無位了, 所以想請教大家....Thx a lot ^^