Arithmetic overflow error converting IDENTITY to data type int

Today I ran into the below error:

Msg 8115, Level 16, State 1, Line 1
Arithmetic overflow error converting IDENTITY to data type int.
Arithmetic overflow occurred.

As the error suggests in the table the max limit of INT (2147483647) has reached.

I am creating one example For the people who haven't seen this error before.

Create table MaxInt
(
  SlNo int identity,
  FirstName varchar(30)
)
Go

---Inserting my first record
Insert into MaxInt values ('FirstRecord')

/* I Reseed to last few numbers */
DBCC CHECKIDENT ( MaxInt, ReSeed, 2147483646)

--Try inserting a record. It would
Insert into MaxInt values ('LastRecord')

/* Trying to insert another one .... now you would see the error mentioned above as we have reached the max of INT already */
Insert into MaxInt values ('LastRecord')

Select * from MaxInt

SlNo	FirstName
1	FirstRecord
2147483647	LastRecord

At this instance my first aim was to make the app up and running at the earliest and then think of the rest! :)

So i decided to reseed the identity column to -2147483648 and have the values count upward towards zero.

DBCC CHECKIDENT ( MaxInt, ReSeed, -2147483648) 
Go

Insert into MaxInt values ('NewRec')
Insert into MaxInt values ('NewRec')

Now we can insert another 2 Billions records into the table.

[Obviously this is just the idea. Before using it please test against your application code and whether it is fine with having negative values in the table etc.,]

That said, Once we reach the Max limit of INT this is not the only solution we have. Other options which we need to consider are:

1. Convert the column from Int to BigInt datatype 
2. Other version of the given solution is to start the number from 0 and make it count downwards as –1, –2, –3 etc.,