I Want to Ask You This Riddle

whoever get these right gets whatever they want from the gift shop from me (1 item)

riddle 1.

the more you take, the more you leave behind, what am i?

riddle 2.

i can be long, i can be short
i can be grown, i can be bought
i can be painted, or left bare
i can be round
i can be square

what am i?