"Used to"

Used to is used to describe routines and habits in the past.

I used to smoke when I was at the University.
Gary used to be fat when he was a little boy.
What did you use to do after school?
I used to play soccer all afternoon.
I didn't use to study for my tests.
Max didn't use to drink, now he drinks too much!

REMEMBER:

To describe current habits or routines WE USE PRESENT SIMPLE . Please do not use "Use to" in present.

INCORRECT : I use to smoke
CORRECT : I smoke

• Used to is to describe past routines and also do not confuse with the verb "USE"

I always use my laptop
I never use my husband's things
Mariela uses her credit card on the internet to buy clothes

• To be + used to + - ing = "Estar acostumbrado" ( ADVANCED STUDENTS!)
  

I am used to waking up early
Carlos is used to eating very spicy food.
Juan isn't used to Lima's terrible weather
Are you used to dancing?

Remember to use the verb to be before used to and to use the -ing form after the used to.

Ok, Profesor Virtual al rescate. Esto puede ser confuso así que vayamos por partes.

Used to = Solía, Solían, Solíamos etc
Por ende, Used to es para expresar rutinas en el pasado

The verb USE or to use = USAR y todas sus variantes

Present (Verb USE)
I use the computer a lot to write my ESL classes.
Past
I used your radio yesterday and broke it!

Este verbo es un verbo mas y puede usarse en distintos tiempo. No es lo mismo el pasado "used" que el "used to"
Son completamente distintos.

Acá va la información extra:
Existe la formulación (TO BE + Use(d) to+ - ing) y esto es tambien distinto. Esto es para expresar que uno esta acostumbrado.

I am used to going out and have fun with my friends
= Estoy acostumbrado a salir y divertirme con mis amigos

Maria is used to watching tv untill very late
= Maria esta acostumbrada a ver Tele hasta muy tarde

Como ven esta ultima forma "Estar acostumbrado" va con el verbo TO BE antes

Así que tengan cuidado

Used to = Solía
Verbo Use = usar
to be + used to + - ing = Estar acostumbrado

Se que toma es un poco complejo pero la practica hace al maestro.