Is there a difference between men and womens cowboy hats? I want to buy one for my boyfriend and dont want to make a mistake.

Originally a milliner made hats for men, women, and children, but today the word is used mostly for makers of women's hats only. The other general terms are "hatter" and "hatmaker."

Jackets are mostly wear by all men and women, there are large number of jackets available in different online stores, the Carhart jacket of women give a new look to them it is available in wide price range and varieties. Amazon and eBay's are best sites to buy the different range of jackets.
Carharrt Jackets Buy Pants Outerwear by Carharrt Here

You can get special hair removal cream for men. Here is one example from Amazon;

http://www.amazon.co.uk/Veet-Men-Hair-Removal-Creme/dp/B000KKNQBK

but I think it really doesn't' matter if it says for men or women. The main difference is probably a marketing one, that men don't want to be seen buying hair removal cream that traditionally seems like a woman's product.

You need to buy one based on your current strength and fitness level, not the level you are aiming to reach. Here is a guideline of what to base it on:

extra light (fit-loop, figure 8, therapy band) - rehab, frail people
light - rehab, some women
medium - average, untrained women, some older men
heavy - average untrained men, active women
extra-heavy - active men, strong women
ultra-heavy (all bands except fit-loop) - strong men, women bodybuilder

This diagram has been taken from the following website: http://www.simplefitnesssolutions.com/resources/Guidelines.htm#CHOOSE CORRECT RESISTANCE

There are different men's and women's saddles. In general, men's pelvic structures are narrower than women's pelvic structures. (It has to do with birthing kids.) Thus, men's saddles are generally narrower than women's. A comfy saddle is the one that is right for your pelvis.

I particularly like Specialized saddles. They make saddles in a variety of widths for men and women. Along with their saddles, they also have a fitting system that uses a gel pad. You sit on the pad, then you measure the width of the depressions made by your pelvis. Then you buy the appropriate saddle.
I had a lot of trouble with pain and numbness prior to getting a Specialized saddle. When I did the measuring, I found I had a very narrow pelvic structure. (My kids have always said I was a tight a**, but I think we are talking about two different issues.)
Hope you find a saddle that fits you well.