I don't have a shed, I don't have a garage, I don't have a home. I'm stuck at my mother's house for the time being (not fun in your 40's.)

When I did have a garage, I had a workbench and had a vice on it. I used a woodworking pipe clamp held in the vice. That's how I tore apart the old Walmart bike to clean up and get working when I first started riding.

I bought my Giant in 2014. I haven't had to do anything other than wash it and tweak the front derailleur barrel adjustment to eliminate some noise when I was in higher gears on the 2nd chain ring. I lived in constant hills and if I was heading uphill, I was going to the small chainring anyways so I adjusted to use the highest gears on the 2nd ring and not have the derailleur cage rub.

No need for a stand or work area for that. I need to give it another adjustment though because I'm not in such extreme constant hills and find myself running the large chainring often now and rarely go to the smaller chainring. So, when heading uphill now I'm using more of the lower gears in the middle ring and the derailleur cage is rubbing there now.

I'm going to have to get a stand because I don't ever take my car to the shop, so I want to try my hand at tearing apart the bottom bracket, hubs, etc to clean and grease. I can change a clutch and head gasket in a car, I'm sure the bike maintenance is a piece of cake.