Part 2; Get a grip
The following is a brief description of the types of grips available for upgrading your bike.
Lock- on grips offer a more secure hand hold than standard rubber ones. With a plastic core held in place between two alloy rings secured by grub screw, they stay attached in the muddiest of conditions. Unfortunately the rigid plastic sleeve underneath the rubber means they're not the most cushioned.
Foam grips are the cheapest & lightest and are often used on butterfly bars seen on touring bikes. Comfort is good on long distances. Unfortunately being made of foam means they absorb water and can tear quite easily. Traditionally available in black only now made in multiple colours.
Mushroom/ribbed patterned grips, often seen on BMX bikes, are great for users with large hands. They are available with a longer grip area and some have a removable flange for fitting to bars with gear shifters. Very sticky, hard wearing and in a range of vibrant colours.
Ergo grips are the best for comfort, grip and durability. With a larger surface area to support the palm of the hand they reduce excess pressure on soft tissue. Some come with built in bar ends, making them great for long distance trips. The dual density rubber used in the construction makes them ideal for ebikes, where the higher speeds can make the bumps more noticeable.
Bar tape. Mostly seen on drop bar bikes, the most cushioned is made from EVA foam with bits of cork mixed in. Available in every colour under the sun, but white is best avoided as it dirties quickly. Fitting can be tricky for beginners but the end result hides cables neatly. Useful for fitting on butterfly bars due to the number of bends.
As a side note, a pair of gloves with padded palms are nice to have if you borrow someone else's bike and don't like the feel of the grips fitted.