Is a $2 bill worth anything?

Excuse me, I'm curious about the value of a $2 bill. Is it still considered to be worth its face value, or has it become a collector's item? Are there any specific features or conditions that make certain $2 bills more valuable than others? I'm wondering if it's worth holding onto one for investment purposes or if I should just spend it like any other currency. Additionally, are there any risks associated with owning a $2 bill that I should be aware of?