I put NEW TIRES on my bike today. I knew my old tires were kind of worn after 3000 miles, but when I actually held them side by side with the new ones- oh my, the old ones were SO worn out it was scary. Getting bald and hairline lengthwise cracks all along the sidewalls. Glad I didn't just keep using them! You don't see how bad old tires are until you see new tires right next to them.
I stupidly pinched a tube and made a hole in it while trying to pry one tire on at the last hardest bit - it was a very tight fit and much harder than when I had put my previous tires on by myself, and when I changed a flat once. DH patched the tube for me (i was also cleaning our oven at the same time) and we finally got everything on ok- I did the other tire by myself.
It's all good practice.
Can't wait to feel the new tires rollin'!

My old tires were Pasela Panaracer with Tourguard (kevlar belt) with wire bead- 700x28.
My new tires are exactly the same except with a kevlar bead- which makes them a teeny bit lighter weight and foldable as opposed to the wire bead. Cool.
Nothing like brand new tires. Tomorrow is Sunday and the weather looks good for an after-breakfast ride.