Ordering Interger values stored in Varchar column

I have seen many newbies asking "How do I sort the numbers stored in varchar columns?"

Here are some methods

declare @t table(data varchar(15))

insert into @t
select '6134' union all
select '144' union all
select '7345' union all
select '109812' union all
select '100074'union all
select '1290' union all
select '45764'

select data from @t
order by cast(data as int)

select data from @t
order by data+0

select data from @t
order by len(data),data

select data from @t
order by replace(str(data),' ','0')

select data from @t
group by data
order by right(replicate('0',len(max(data))),len(data))