So far I used a bunch of bike hooks screwed into a 2x4 that I attached to a wall to store my bikes.
This was alright in my unfinished basement, but since I am setting up a little dedicated bike shop (drywalled and painted), I wanted something that looked less DIY.
Stumbled across a system from Gladiator at Home Depot.
Basically a universal wall rail that can accommodate various attachments, one of them being bike hooks.
Thought I'd give it a try and have to say it works really well and looks nice.
Another benefit besides the look, is that it is easy to rearrange the hooks, e.g. to hang bikes that I ride less closer than the ones I use often.