French language Q&A Forum

Why is there "de" after "changer"? Just as we see in your example: "Je devrai changer de vêtements" why not "les" or "des"? 
I always wondered about this, and very interested to find out answer (if there is a specific rule, or it's just one more thing we have to cram)

Several times you have used "profiter de" to mean to enjoy.  The dictionary I looked at defined profiter a to mean "to be of benefit to" and profiter de as "to take advantage of."  Neither of these seems (to me. at least) to imply to enjoy or to take pleasure from.  Why do you choose to use it rather than something like prendre plaisir de or some other more enjoyable-sounding term?   ( Sorry, but the computer doesn't seem to respond to the holding down of letters for which an accent or other diacritical mark is needed, so my questions are grammatically incorrect......)