"Women's" versions of products seem to be consistently more expensive than then "men's" versions (here's a recent study done in NYC about it:
http://www1.nyc.gov/assets/dca/downloads/pdf/partners/Study-of-Gender-Pricing-in-NYC.pdf ) I put quotes around these because in most cases the differences are completely aesthetic.
Here are some things that I've saved money on by buying the "men's" version:
*Razors - save $5 / pack of razor heads; saved $6 for the actual razor.
*Pajamas / sweatpants - save between $2 and $10 - bonus the "men's" version has pockets!!
*Eyeglasses - this is harder to compare, but the pair I bought was $45 less than a similar look from the same brand on the women's side, plus the men's version didn't have rhinestones on it - score!
*Helmet - saved $7 for a blue "men's" bike helmet compared to the magenta "women's" version from the same brand / style. The store clerk tried to convince me that the "men's" version would be too big for my head. It isn't.
*Backpack - saved $15 - the men's version was black and red, the women's version was magenta and turquoise. I inspected them for a good 5 minutes - I was sure I was missing some special feature on the women's bag that warranted at $15 price difference - but no it was just for the color of the bag.
Things that didn't work as well:
*Socks - were cheaper, but too big width-wise (even when I tried to get a "small" size)
*Soap / shampoo - all the men's versions were marginally cheaper and my god the smell - so strong! Buy bar soap and be done with it.
*Most shirts and pants - They are cheaper on the men's side, but I have a curvy figure and they really don't fit - bummer.
Does anyone else do this? If so, are there other items that you save $$ on this way?