The Sunnah is to keep perfume and to use it regularly on oneself. Al-Bukhari narrated that Salman Al-Farsi said: the Prophet S.A.W.S. said
“Allah will forgive the sins of the past week for he who on Friday will take a bath, cleanse himself, put on his (regular) pefrume or any perfume available in house. Then, he goes out (to Jumu’ah prayer) and does not try to separate two friends. The he prays wherever he could and listen to the Imam.”
If the body became odorous a day or two before Friday, one should not wait till Friday to cleanse the body. We should was our bodies as soon as it require washing to keep ourselves clean and fresh.
To take a bath on Friday is specifically required since a large number of people will be gathering at mosques. However, if our body became dirty or we sweat on a particular day, then we should take a bath at the end of day or next morning. This is indicated by a Hadith narrated by Al-Bukhari and Muslim that Abu Huraira said, the Prophet S.A.W.S. said:
“It is the duty of every Muslim to have a bath once every week to wash his head and body.”