birth control
"This is my third type of birth control pill over the last 4 years. I've gone on and off birth control, mostly because I'm not sexually active very much unless I have a boyfriend. Currently I'm on my 5th packet.
Pros:
CHEAP! $9 at Wal-Mart
No taste
Easy to swallow. 
Periods reduced to 4-5 days when they were lasting 7-8 days before.
Cons:
Bad nausea and headaches on the first 3 packets.
Slight breast tenderness upon resuming a new packet. Usually only lasts for a couple days.
Delayed periods. On my old birth control I would get them the next day after stopping a packet but now it takes 3-4 days for it to start.
Painful cramps for the first day of period.

Overall, I'd recommend it. All types of birth control will give you some of these side effects."