Making Symbols with Keyboards

Alt + 0153..... ™... -trademark symbol
Alt + 0169.... ©.... -copyright symbol
Alt + 0174..... ®.... -registered trademark
Alt + 0176 ...°...... -degre­e symbol
Alt + 0177 ...±.... -plus-or­-minus sign
Alt + 0182 ...¶..... -paragraph mark
Alt + 0190 ...¾.... -fraction, three-fourths
Alt + 0215 ....×.....multi­application sign
Alt + 0162...¢.... -the cent sign
Alt + 0161.....¡..... -upside down exclamation point
Alt + 0191.....¿..... ­-upside down question mark
Alt + 1.... :)....... -smiley face
Alt + 2 ......☻..... -black smiley face
Alt + 15.....☼..... -sun
Alt + 12......♀..... -female sign
Alt + 11.....♂...... -male sign
Alt + 6.......♠..... -spade
Alt + 5.......♣...... ­Club
Alt + 3......♥....... ­Heart
Alt + 4.......♦...... ­Diamond
Alt + 13......♪..... -eighth note
Alt + 14......♫...... ­beamed eighth note
Alt + 8721.... ∑.... -summation (auto sum)
Alt + 251.....√..... -square root check mark
Alt + 8236.....∞..... ­infinity
Alt + 24.......↑..... ­up arrow
Alt + 25......↓...... ­down arrow
Alt + 26.....→..... -right arrow
Alt + 27......←..... -left arrow
Alt + 18.....↕...... -up/down arrow
Alt + 29......↔... -left right arrow