The wise Benjamin Franklin said neither a borrower or a lender be (except of course when it comes to quotes, since Franklin had no problem borrowing that saying from Shakespeare). But would he have stuck to that adage if given the chance to borrow, we don't know, a $900 pair of sapphire-accented John Hardy cufflinks?

Maybe a service like Blingyourself.com would have convinced him to compromise (if the concept of the interweb alone didn't blow his mind first, that is). The website allows customers to borrow fancy watches, jewelry and sunglasses—like Rolex, David Yurman, Charriol, Chopard and Judith Ripka—by the week or the month, at a nominal fee (when compared to the retail cost).

Rental fees range from $24-$900, depending on what you want to borrow and for how long. Become a member for $100 per year and get a decent discount—up to $100 less than non-members on the more valuable items.

Though it seems a little gimmicky, the concept does makes sense. How many times have we spent way too much on something and gotten sick of it a month later? As many times as we've bought something and returned it the very next day.

But if we could rent it, and try it out without paying full price or having to keep it forever, in the long run we'd save a fortune. Monetarily and emotionally.

We would start with this Cavalli snake bracelet at only $24 a week, which looks really cute to us now. In a week, who knows, that engraved snake head might start to resemble Voldemort in a page boy wig and a yamulka, and nobody wants that.