Ibikoresho byoherejwe neza cyane nibikoresho byingenzi mubisanduku byinganda zikora inganda, zagenewe kohereza ingufu neza kandi neza. Kugaragaza amenyo afite inguni yinjira buhoro buhoro, ibyo bikoresho bigabanya urusaku no kunyeganyega, bigatuma imikorere ituje.
Ikozwe mu mbaraga zikomeye, idashobora kwihanganira kwambara kandi neza cyane kubutaka, itanga uburebure budasanzwe kandi bwizewe. Icyifuzo cyibikorwa biremereye cyane, ibyuma bihanitse cyane byifashisha ibyuma byinganda byinganda kugirango bikore imitwaro myinshi yumuriro hamwe no gutakaza ingufu nkeya, bigira uruhare mubikorwa rusange no kuramba kwimashini mubidukikije bisaba.