Long term trading manual system

I would like to devote this thread for long term trading manual system only.
A must rules for joining this thread are :
1.No scalping.
2.No news trading.
3.No EA.
4.Only one indicator allow.

I mean to discuss about simple system that trader can trade with

less time consuming : 10 minutes daily monitoring should be enough.
less complicate decision : none or one indicator to check for.
less technology : no robot or any programming knowledge is required.

There is the classic 200 sma on daily chart.
Buy above, sell below.

Fits in your rules.

PS: Good luck on that ...

Welcome to FF! How about just trading with sentiment? No charts needed, you can keep up with all market happenings throughout the day on a mobile device. Long the best currency vs the one with bad sentiment and short the opposite. Thats enough of an edge to profit from.
Alot of sentiment is long-term. ie; the BoJ pumping Yen to meet their 2 year inflation goals.