Since you have to wait a while for potatoes (or other crops) to grow, it is best to visit all the places you can. Search the online guides for "farming patches"; some of the online guides include maps. A few more notes:
best Place To Cut Willows Is By Draynor Bank.
Depends what you are cutting. If you are cutting normal trees, around the Grand Exchange would be the best place. If you're cutting oak trees, northwest of the northern varrok bank would be the best. If you're cutting willow north of the draynor bank would be the best. If you're cutting yews south of falador would be the best. If you're cutting member logs look it up on runescape wiki.
The Wilderness.
The best way to fish on runescape is to use a net or a fishing rod and bait in draynor. Then it is easy to bank your fish
Fishing guide
The best place to kill zombies is at the armor zombie place. IT is where everyone get 99 str.
There are many cooking ranges on runescape. The best cooking range on runescape is at Al-Kharid. It is the closest to a bank.
Lumbridge North, McGrubor's Woods North, Yanille, Entrana - Out of all those the best place is Yanille, It being the closest to a bank, plus fast access for P.O.H owners.
stronghold of secutity i like
Living Rock Caverns
grand exchange.
barb village