This is not a sign for a puppy rescue group but merely an offering from a hot dog establishment. The problem is that as one word, “everyday” is an adjective: “Eating a hot dog is an everyday habit.” What kind of habit (noun)? An everyday (adjective) one.
However, this sign needed to make it two words. Every day you can get a hot dog for $3.50. Which day? Every day. In this sense, “every” is an adjective modifying the noun “day.”
Go and sin no more.
Yesterday I read an ad for a toy. This is the title over the photo:
Light up kid’s imaginations everyday!
What lit up was my annoyance. Did you catch two problems?
1. If you are referring to imaginations, then kids needs to be plural, but the apostrophe in this ad makes kid’s singular. It should read kids’ imaginations.
2. Everyday is an adjective: Brushing your teeth is an everyday occurence. When do you brush your teeth? Every day. Two words! Day is the noun and every is the adjective telling you which day. Light up your kids’ imaginations every day.