The following sentences are all excerpts from sales letters. Revise them, making them concrete, positive, and active. Try to put the reader into the action.

a. The interactive tutorials make it unnecessary to train office personnel in the use of this program.

b. A return trip to London can be had for $625 during the special early-bird sale, but the sale ends April 30

c. With this wire whisk, there need be no more lumps in sauces; instead the sauces will be smooth.

d. Free bonus: a ballpoint pen goes with every order, as long as the order isn't under $10.

e. The cost of this self-cleaning machine is more than that of a conventional one, but it eliminates clogging and a lot of cleaning downtime.

f. This computer workstation looks good and suits most office decors.