I will never use actual shelf liner again. The last time I changed out what was supposed to be removable shelf liner it was a mess and didn't remove easily. I had to use a blow dryer to heat up the glue and remove it. I ended up purchasing several yards of vinyl table cloth fabric. It has a felt like backing. I cut it to the appropriate size. It works great and cleans easily and the cost was considerably less than shelf liner. Fabric stores also sell clear vinyl that would work. I have also read about people using cheap vinyl tiles and placing them on shelves. Most did not remove the backing. Older generations used something called oil cloth which is still available. It was a bit pricier than the vinyl.

i use the rolls of semi-transparent vinyl with the raised ribs. looks good, easy to trim straight, and raises wet objects off of the surface to dry better.

you can buy it at bed bath and beyond.

Second ninigret's recommendation, but would check pricing at the Container Store -- might be cheaper in the longer length - plus they are offering 30% off one item.

^I use the anti-slip cushiony kind. Washes up easily in a sink of soapy water or can be tossed in the wash. Not in all cabs/drawers though, only drawers where things slide around.

I've also used the colourful kraft paper in my linen closet, available at home renovation type stores. Comes on a roll like wrapping paper. No backing. Folding each edge under 1/2 inch or so gives a more finished look than leaving a raw edge. Paper not so great for wet applications but easily replaceable when it gets soiled or you get bored of it.