The liturgy of the many denominations ultimately derives from that of the western Catholic church, however most "post-Protestant" denominations (e.g. evangelicals, nondenominational, etc.) claim to have no need for liturgy, or else insist that their manner of worship is a full return to the days of the apostles. These claims have not been (or cannot be) substantiated by biblical or historical evidence.
What we do know about the worship of the early church were that the celebration of the eucharist, the rites of the sacraments, prayer in common, and the liturgical sermon (preaching on a biblical story). These are based on the example of Jesus, as Jesus did not originate these liturgical acts (save for the Last Supper), but took them over from the practice of late Judaism. If you go to a synagogue today, you would be quite comfortable and understand what’s going on. The original church considered themselves Jewish, so the liturgical customs were fashioned as such. Borrowings were later made from the practices of the Greco-Roman world.
I do miss the sacraments.. when I was little and I looked at the 7 sacraments, i saw my whole life. From birth (baptism) to death (last rites), my whole life was laid out and i was going to collect all 7. then i realized that you couldn't... a priest cannot be married AND ordained and I thought this was stupid (and still do). So protestants really need to see the sacraments for what they are, step-stones for life. I would like to see a return to the 7 sacrament system, what do you think? Which would you keep and which would you throw out?