What Unicode character do you use in your website? (instead of image icons)

Question

I am looking for character which could replace image icon, for example like ✘ (xmark) and ✔ (tick), maybe some symbol to \"draft\" or \"new message\"?

EDIT:

Answer 1

← ↑ → ↓ ↔ ↕ ↖ ↗ ↘ ↙

just to name a few...