Used other than figuratively or idiomatically: see help.
To serve oneself, especially to take food or other supplies, rather than wait to be served by another; used to indicate friendly permission or invitation.
To exhibit self-control.
To take something freely; to serve oneself without restraint.
Used other than figuratively or idiomatically: see work, in.
To find time or space for, amid other things.
To work out using a machine in between the sets of someone who is already using that machine.