I didn't want to pay the price of Latisse, or for a doctor visit, so I bought the generic (bimatoprost). It's the same stuff and my lashes are AMAZING. Everyone has noticed and they all are using it now.
It took a good 2 1/2 months to see some results, but it's worth it. After 4 months, my lashes are super long. Shipping is a little expensive on the website (24.99) but you can buy as many bottles as you want with no prior prescription. Plus each bottle (3ml) lasts me 3 months! If you want long lashes without the high price tag, it's the way to go.