Savings Plan

I want to save money for 3 separate things.

A kitchenaide mixer. Color Pistachio.
http://www.bedbathandbeyond.com/product.asp?SKU=102986&COL=339&RN=437&
If I get it from BB&B I will get to use a 20% off coupon. But still it is more money that I have in my pocket now.

A computer. At this point any computer. My poor hubby has to drag me away from his laptop.

A tattoo. Tattoos cost money, more money than a sticker. I get that not everyone can understand the love of getting and having tattoos. I have always liked them. I don't want a large one. I want a small dainty one somewhere it could be hidden in everyday clothing without wearing long sleeves. I live in FL. I haven't worn a long sleeved shirt yet this year. haha...this year is only 14 days long.

Saving has always been hard for me. I am an impulse buyer. I have gotten better. I have forced rules upon myself. I have conquered bad spending habit's while others still plague me.

I have a plan...maybe. I stumbled upon this on Pintrest.
http://pinterest.com/pin/195554808791540703/
It is a saving's plan. A plan that involves saving every $5 bill you ever get.

Now because I am saving for 3 things, should I have 3 separate "piggy banks"? Or should I save until I can afford the cheapest then start saving again till I reach the next cheapest and then restart till I can get the third?

I will prob start with one bank and decide how that is going before I decide if I need 2 more.