Salaam 'alaikum :D
"... Islam places great emphasis on cleanliness, in both physical and spiritual terms. Islam insists on it, making it an indispensable fundamental of faith. Cleanliness is an essential part of Islamic life and in fact the meaning and spirit behind the concept of cleanliness is much beyond the superficial concept of the conventional cleanliness.
There are two kinds of cleanliness; physical and spiritual. As far as physical cleanliness is concerned, it is of two types. One which is related to human body and the other is related to environment, water, house, road and public places...
... Muslims wash their genitals after passing urine and secretion and take bath every time they have intercourse with their mates. Muslims also enjoined to use water, not paper or anything else after eliminating body wastes. They are categorically prohibited to have sex with their wives during their menses.
A Muslim is obliged to make ablution if exposed to minor impurities. This means he must wash off those parts of the body (like hand, feet, face, nostrils etc) which are commonly exposed to dust, dirt and environmental pollution. Before every prayer (at least five times a day) and before recital of the Quran, Muslims are asked to perform this ablution...
Islam instructed Muslims to maintain the cleanliness of the roads and streets. This is considered a charity to ridding the streets of impurities and filth. The Prophet (Peace be upon him) strictly warned against it and considered it one of the reasons to provoke Allah's curse and the people's curse, saying: "Beware of the three acts that cause others to curse you: relieving yourselves in a watering place, on foot paths or shaded places."
Apart from physical cleanliness, Islam emphasizes on spiritual cleanliness. This means that one is free from polytheism, hypocrisy and ill manners, love of wealth, love of fame and other carnal desires. The emphasis in Islam is more on the cleanliness of the inner-self that is heart, mind and soul. The external cleaning process and rituals in reality are the preparatory ground work to obtain the more important task and that is cleanliness of the inner-self, which is the ultimate goal of the religion. Islam requires the sincere believer to sanitize and purify his entire way of life. The directives of Zakah (alms) and fasting are nothing but to purify ones wealth and soul.
Cleanliness is the pathway to health and strength. Islam wants a healthy and strong Muslim society which is immune against infectious diseases and is capable of understanding and applying God's message and carrying it away to the whole world..."
Here are some of the sayings of the prophet Mohammed -peace be upon him- regarding Cleanliness:
"Cleanliness is half of faith"
"The key to paradise is prayer and the key to prayer is cleanliness."
"God is pure and loves purity and cleanliness."
"Food is blessed when one washes his hands before and after it"
"Had I not found it difficult for my followers, I would have ordered them to cleanse their teeth before every prayer."