Acts17apologetics reveal some higher meanings; symbolism of ablutions?

In answer to the video "Islamicize Me Day 6: The Prophet's Drinking Game"

The purification of the garments 74:4, another pre-requisite of religious rituals, similarily contains an element of symbolism as seen with the classical Arabic metaphor of garment purity being equal with moral uprightness, as well as encourages rectitude. Beyond this symbolism, purification of the garments encourages general rectitude.

A neat and clean, as well as pure appearance helps one to remain mentally uplifted everyday, and gives the correct introduction of one's personality to others. This is a reason why, as a side note, the prophet is reported to have avoided both in his private and religious life, foul smelling foods and used to perfume himself on all occasions, always seeking to be presentable so as to not offend neither the humans nor the angels, especially in a religious gathering context

7:31"O children of Adam, take your adornment at every place of prayer. Eat and drink, but not to excess. Verily, He does not love those who commit excess".

Here again however, just as above, there is no need to over exert oneself and be obsessed with the cleanness of one's clothes prior to engaging in the prayer ritual. A case in point is the following, and there is no shame in speaking of it. People do not always undress entirely naked during sexual intercourse. His wife Aisha said 

"I never saw the Messenger of Allah’s (Allah bless him & give him peace) private parts”. 

Naturally then, it might happen that visible traces of sexual fluids remain on one's clothes, especially if those clothes are wide and ample as is the case in many cultures.

Someone asked Umm Habibah, the wife of the Prophet: 

"Did the Messenger of Allah ever offered prayer in a garment in which he had sexual intercourse?" She said: "Yes, if there was nothing noxious on it". 

So even though one must perform a ritual bath prior to prayer in that case, one's clothes do not need to be entirely washed because of a few traces. The removal of these visible impurities is enough to purify the clothes again. This happened to the prophet, as it must have happened to countless prophets and regular people before, and after him.

The prophet was a saint, but remained entirely human, living in according to what he thought was the most suited behavior of his time and space, so long as it did not contravene the principles of higher morality and pragmatism. Unfortunately nothing survived of the prophets Moses, David or Solomon's standards of behavior in similar circumstances for comparison.