Alright, here's my two cents.

 

I'm f2p, and have been since I started this game as a joke 6 months ago. Bank space would be nice, of course, but I really don't think about it at all, as I only was short in the beginning, when I would stockpile numerous different items for skilling and merchanting. At the moment, I think (Rather tired and would rather not have to log in), I have ~6 to 8 spots left. I would consider myself a fairly average player. I have enough cash in the bank to not really worry about being poor, I have fairly decent skills etc, but what matters to this topic is what items I have, and how that relates to bank space. The attached image is my current bank, and it has been more or less like this ever since I discovered that space is finite.

 

 

As you might be able to tell, I have a lot of superfluous stuff already. Even so, I still have space to spare when wish to skill, mine to sell, merchant, or player kill. I can start to train nearly any skill using what I have already in bank, and have enough space to be flexible. If I want to smith, I have room for ores, bars, and even a piece of armor or too. If I wish to pk, I have room to store strength pots, lobsters, loot, etc. This brings me to what I'm trying to get across:

 

 

 

1) If you can get it easily in the number you want, don't bank it. (Yes yes i have unnecessary stuff, but I have room to spare at the moment)

 

2) As sticking to 1 thing is often the most efficient use of time, you can rotate what fills your open slots depending on what you are doing. Complete one task (within reason) use up the materials you have, and then do something else.

 

3) Even if you can't necessarily just get it from the general store or an npc shop, it doesn't necessarily warrant a spot if you will use it very very rarely. (I used to have a mind tiara-takes more than a few seconds to assemble-but as I only practically craft airs, I gave it away)

 

4) Random event stuff will eat up your space *really* quickly. You must decide whether it is worth it, as the clothing gives no stats and is monetarily worthless.

 

5) Unless you are stockpiling, try not to keep a plethora of raw materials, even while skilling. Coal and iron -> steel bars. Try not to have all 3 things at once.

 

 

 

Other random bank tips:

 

1) Placeholders are good

 

2) Organize it in some way, so you can easily assess your stockpiled worth

 

3) Leave some open space for the sake of flexibility

2/10

 

 

 

Sorry mate, but this isn't a lot of information and there are several others of these on f2p bank space (points to page 2).

 

Also there's this one of mine. :D Not specifically for f2p, but I think it's pretty good. =P