Some of My Shopping "Rules"

I have some funny "rules" when I shop. It's basically how much I'm willing to pay for items I want or need. I have put a price limit of what I'll spend on certain items and do so with the help of my Grocery Smarts lists, sales, & coupons. Here are a few:
I never pay more than $1.00 for:

toothpaste/toothbrushes, (usually $0.50 & under or FREE) soup, cake mixes/frosting, pasta, mustard, hand soap, Quaker Quakes, frozen veggies

I never pay more than $1.25 for:

cereal (usually it's under $1), granola bars, fruit snacks, Chex mix, cream cheese, dish soap, plastic food storage bags (Ziploc or Hefty), Goldfish crackers
I never pay more than $1.50 for:
household cleaners, applesauce, Q-tips, syrup, Electrosol, mac & cheese

I never pay more than $1.99lb for:

boneless skinless chicken breast, ground beef, pork chops, roast

I never pay more than $2.00 for:

shredded cheese, tortillas, chocolate chips, razors, deoderant, Cottonelle wipes, Excederin, NyQuil, Lean Pockets, Doritos

I never pay more than $3.00 for:

Diet Coke (12 pack), Tostitos

Do you have crazy shopping "rules" like me? I'd love to hear about them. Leave me a comment or send me an email and tell me what you are spending "limits" are.