If you mix developer, fixer, wash-aid, etc yourself then there is no storage problem because they are so cheap to make from raw chemicals that you do not need to store working strength over long periods - you simply throw away after use. In addition, most liquid chemicals at stock strength will last for ages (HC110 for example will last more than 3 years if stored at stock strength and used one-shot). With working strength chemicals (with the exception of two-bath developers, selenium toner, etc) it is best not to store them over long periods because this is a false economy resulting in unpredictable results.
The key question with storing working strength chemicals over long periods is whether you are actually being economical. For example, if you use Dokumol print developer, 1 litre at working strength (I use 1 + 6 strength) is enough to develop 10 final 16 x 12 prints including test strips and work prints - I always feel that I have 'had my monies worth' with 10 final prints and would not store for further use although Dokumol will deliver good results if you do store for a few weeks. Having achieved 10 good prints in a session why would you want to store the developer for further use?
Don't get me wrong, I am not loaded and can't afford to just throw away good chemicals but after all of the effort in finding images I do not want to take risks with developing the film. With printing, a good testing regime for the fixer (two-bath) is far more important than trying to save a few bob by storing the working strength fixer for months before a new printing session.
Perhaps if you could explain which chemicals you are trying to store over long periods, everyone here could provide better advice in terms of whether there is an appropriate storage method, whether it would be more economical to mix fresh chemicals (i.e. changing to HC110 one shot for film development) or whether you are trying to make a false economy (i.e Tetenal Lavaquick when mixed at 60ml + 1000ml water has an archival capacity of 30 prints at size 16 x 12 and should not be used beyond this).