UTF8 codes I may commonly use and reuse! ♼

Also see an extended list at: http://home.tiscali.nl/t876506/utf8tbl.html
Excellent resource: http://www.alanwood.net/unicode/miscellaneous_symbols.html

UPDATE 2018-04-05 Today, I came across a potentially useful site, Shapecatcher.com which lets you draw a shape and produces a list of potential Unicode matches. Cool, at the very least.

Android users, please note that the default Android browser may not show all the characters used for this web page. Sorry, that's out of my control.

UTF8 Symbol
Type ctrl-shift-u (release - then type) and enter key
Name
¿, ¡ 00bf, 00a1

My apologies...for a very long time, I had the wrong code shown for the inverted exclamation point. I wish someone had told me. But it is finally fixed!
inverted question mark
inverted exclamation point.
è
00e8
lower case e accent grave
é, É
00e9, 00c9
lower case e accent acute and cap
ñ, Ñ
00f1, 00d1
nyay for Spanish
ç
00e7
c with cedilla for French
2014
em dash
≈, ≠ 2248, 2260
approximately equal to, not equal to
267d
recycle symbol in circle

267c
recycle symbol inverted
♳, ♴, ♵, ... ♹
2673, 2674, ..., 2679
recycle plastic #1, 2, etc. to 7

266b
music

2122
trademark
©
00a9
copyright
®
00ae
registered

2714
check mark

2611
check mark in box

2614
rain and umbrella
☎, ✆
260e, 2706
phones

20ac
euro symbol
£
00a3
UK Pound
¥
00a5
Japanese Yen and Chinese Yuan
°
00b0
degree symbol
⇦, ⇧, ⇨, ⇩
21e6, 21e7, 21e8, 21e9
white arrows
☚, ☛
261a, 261b
pointing hands

26a0
warning

00b6
pilchrow (paragraph) mark

2665
heart

I've also experimented with JavaScript and had some Unicode fun with it.