Cut out any unnecessary words and make the sentence more concise.
I have been working at the store for quite a while now.
I've worked at the store for a while.
Complete the following task based on the instruction and optional input provided.### Instruction:
Cut out any unnecessary words and make the sentence more concise.

### Input:
I have been working at the store for quite a while now.

### Output:
I've worked at the store for a while.